Harry Potter books, which________by J.K. Rowling, are very popular with children around the world.

(Đề chính thức Bộ GD&ĐT năm 2014)

A. were written                     

The headmaster has decided that three lecture halls_________in our school next semester.

(Đề chính thức Bộ GD&ĐT năm 2015)

A. will build                                                                    

B. will be built

Jane would never forget_______first prize in such a prestigious competition.

(Đề minh hoạ Bộ GD&ĐT năm 2019)

A. to be awarded                                                             

B. being awarded

The flood victims_______with food and clean water by the volunteers.

(Đề minh hoạ Bộ GD&ĐT năm 2021)

A. provide                         

It's good I got interested in that bottle. Granny ________ the poison taking it for her asthma medicine because the bottle was unmarked.

A. might have swallowed                                                

B. had swallowed

"How many people________? Remember we will have to cover their travel expenses."

"Well, it's up to you. I can assure you I won't protest."

A. will we invite                    

A. chỉ di truyền ở giới đồng giao tử                               

B. Chỉ di truyền ở giới đực.

After so many defeats the team's manager__________Most supporters will be happy if he does.

A. may have had to go                                                     

B. must have gone

I suppose in the end they didn't have enough money to carry out all the redecorations; or the landlord _________to the changes.

A. may have objected                                                      

B. has objected

A. Quá trình chọn lọc tự nhiên đã tạo ra các gen chống lại sự thoái hóa giống.      

A. 21.                                     

Doctor Detors was very fluent in English and so I_______an interpreter, which greatly reduced the cost of the lecture.

A. needn't have hired                                                       

B. didn't need hire

Trâu tiêu hóa được xenlulôzơ có trong thức ăn là nhờ enzim của

A. tuyến nước bọt.                                                           

B. tuyến tụy.                     

Even if she thought the ride and the tickets would be free, she_______Jimmy some pocket money. As it was, the boy couldn't even buy himself an ice cream.

A. ought to have given           

All the afternoon the kids were out on the beach and so Eva and I_________some serious talk about what was going wrong in our marriage. With the children around, such discussion would have been impossible.

A. might have                    

Since Bernie and Alf couldn't take part in the last training games, we ________ some problems with team coordination. Well, we'll find that out tomorrow.

A. might have expected                                                   

B. might now expect

A. vi khuẩn và đất.                                                          

B. giun đất và chất dinh dưỡng.

On that evening the landlady let us into her kitchen and so we________the normal gas cooker with four rings. Making so many pancakes on my two-ring electric stove would have taken too long.

A. could use                                                                     

B. could have used

Changes have been made in our primary schooling program. As a result, young children _______ do homework anymore.

(Đề thi chính thức năm 2015)

A. needn't                               

Ở một loài cá, tính trạng mọc râu trên mép do một gen nằm trong ti thể chi phối. Tiến hành lai cá mẹ không râu với cá bố có râu qua nhiều lứa đẻ thu được nhiều rất nhiều con. Nếu không có đột biến, kết quả nào sau đây ở đời con là phù hợp?

A. 100% con có râu.                                                        

B. 100% con không râu.

You________use your mobile phone during the test. It's against the rules.

(Đề thi chính thức năm 2017)

A. mustn't                              

There is no excuse for your late submission! You_________the report by last Friday.

(Đề thi chính thức năm 2018)

A. mightn't have finished                                                

Tạo giống mới bằng cách tạo thể đột biến tam bội (3n) không có hiệu quả đối với giống cây trồng nào sau đây?

A. Nho.                                   

You______wear gloves to keep your hands warm. It's very cold outside.

(Đề thi chính thức năm 2021)

A. will                                    

Mary is talking to a porter in the hotel lobby.

- Porter:_______I help you with your suitcase?

- Mary: That's very kind of you.

(Đề minh hoạ Tiếng Anh Bộ GD&ĐT 2017)

A. Shall