_______are the formal rules of correct or polite behavior among people using the Internet.

A. Traffic rules

B. Family rules

C. Codes of etiquettes

That's no excuse! You know you ______ this report by today.

A. can’t have finished

B. must have finished

C. may not have finished

D. should have finished

Make sure you ___ up the data on your computer, because you might get a virus.

A. back

B. store

C. save

D. copy

My sister and her husband ____  over to my house for dinner tomorrow evening.

A. came

B. come

C. going to come

D. are coming

Knocking on closed doors before entering can be a great way for children to practice _________ behaviors.

A. respecting

B. respectfu

C. respected

Are you taking _________  this semester?

A. house economics

B. home economic

C. house economic

I don’t suppose there is anyone there, _________?

A. do I

B. isn't there

C. is there

Ann's encouraging words gave me ________ to undertake the demanding task once again.

A. a point

B. an incentive

C. a resolution

He drove fast and arrived an hour _______ of schedule.

A. in advance

B. ahead

C. in front

Alan and Sue ____ an argument. They are not speaking to each other.

A. need have had

B. must have had

C. might have

D. should have had

At this time of the year the number of students in the university tends to ____.

A. dwindle

B. deteriorate

C. reduce

British and Australian people share the same language, but in other aspects they are as different as ____. 

A. cats and dogs

B. chalk and cheese

C. salt and pepper

The plane ___­­_ down 20 minutes later than scheduled because of the bad weather.

A. put

B. flew

C. landed

D. touched

Older people ­­­­­_____ a large proportion of those living in poverty.

A. comprise

B. consist

C. compose

D. compound

The government is going to _____ the old building and build a new one.

A. extinguish

B. dissolve

C. demolish

I’ve been on _____ nine since I heard that I passed the exam.

A. happiness

B. sky

C. universe

D. cloud

In view of the way things have improved I now feel confident enough to have another bite at the _______.

A. banana

B. apple

C. cherry

D. pear

There ______ a pen, a book, and 3 pencils on the table.

A. is

B. are

C. were

D. has

Too much rubbish is being dumped in ______.

A. sea

B. the sea

C. a sea

D. some sea

I suggest we _____ for the cheapest method.

A. choose

B. opt

C. decide

D. select

The runner was ______ after the blood test because they found dopping in his blood.

A. qualified

B. unqualified

C. misqualified

If that old vase is a ______ one, it will cost a lot of money.

A. sincere

B. genuine

C. truthful

I’m managing to keep my head above ______ though I’n not earning much.

A. fire

B. water

C. sky

D. roof

Thank you for your explanation, but I’m afraid I’m still in a _____ over what happened.

A. fog

B. trouble

C. wonder

D. shade

She is without _____ the best student in the class.

A. evidence

B. fail

C. sense

D. mistake

Debbie is the black _____ of the family, having left home at 17 to live with her boyfriend.

A. pig

B. bird

C. sheep

D. dog

The book would have been perfect_____ the ending.

A. it hadn’t been for

B. hadn’t it been for

C. it had not been for

D. had it not been for

The hotel was terrible, but the wonderful beach_____ our disappointment.

A. came down with

B. made up for

C. got through to

It's ___ unique opportunity to see African wildlife in its natural environment.

A. the

B. no article

C. a

D. an

Mrs. Davies asked me to tell you that she would like ___ by Friday at the latest.

A. the orders sent

B. sending the orders

C. sent the orders

D. that you sent

Tom: “Is there anything interesting _____ the paper today?" Anna: “Well, there’s an unusual picture____ the back page ”

A. on – on

B. in – on

C. in – in

His speech was careful and______, but his words seemed to make no sense.

A. distinctive

B. distinction

C. distinct

D. distinguish

_____ we understand his reasons, we cannot accept his behaviour.

A. As if

B. What if

C. Even if

D. Only if

This winter wasn’t_______ as difficult as last winter.

A. almost

B. nearly

C. closely

The______ on the kitchen table.

A. grocery is

B. grocery are

C. groceries is

D. groceries are

I was tired when you saw me because I____for the exam.

A. studied

B. have been studying

C. had been studying

Indiana University, one of the largest in the nation, is located in a ____ town.

A. small beautiful Midwestern

B. beautiful Midwestern small

C. Midwestern beautiful small

That's no excuse! You know you ______ this report by today.

A. can’t have finished

B. must have finished

C. may not have finished

D. should have finished

Make sure you ______ up the data on your computer, because you might get a virus.

A. back

B. store

C. save

The climate is not dry at all; in fact, they have ____ of water

A. a redundancy

B. an abundance

C. a deficiency

D. a mixture