Jacob and Isabelle are in the office. It’s break time.

Isabelle: “_________”

Jacob: “Yes. I’d love to.”

Giải phương trình: cos3x – 2sin2x – cosx – sinx – 1 = 0.

Judy is in bed. She looks really bad.    

Lily: “_________?!”

Judy: “I have got a terrible headache.”

Jack and his wife are at home. His wife is talking about James, one of her colleagues that Jack knows.

Jack’s wife: “James was badly injured in a car crash. He has been in hospital for 5 days.”

Jack: “_________”

Giải phường trình: 2sin²x – sinx – 1 = 0.

It’s Emily’s birthday today. Charlotte has just got to her house for the party.

Charlotte: “Happy birthday! This is a small present for you.”

Emily: “_________”

Tìm m để hai đường thẳng (d): y = 3x + 1 và (d′): y = (m−1)x − 2m song song với nhau.

Tara and Paula is talking about the film that Paula went to see with her boyfriend last night. Tara: “_________”

Paula: “It was really interesting.”

Cho các hàm số: y = 2x − 2 và y = (m + 1)x − m² – m (m ≠ −1). Tìm m để đồ thị hai hàm số trên là các đường thẳng song song.

Jolie sees Vicky in the gym. They haven’t seen each other for several months.

Vicky: “You look really in good shape.”

Jolie: “_________”

Cho hàm số y = ax⁴ + bx² + c (a ≠ 0) có bảng biến thiên dưới đây:

Tính P = a – 2ab + 3c.

Harry has bought a new camera. Charlie wants to have a look at it.

Charlie: “Can I try your new camera?”

Harry: “_________”

It’s late in the evening. Susan and Fiona have just finished work in their office.

Susa: “Let me drive you home.”

Fiona: “_________”

Tìm x, biết: 25x² – 9 = 0.

Kate and Rebecca see each other in the bank. They haven’t met for months.

Kate: “How have you been recently?”

Rebecca: “_________”

Tìm x, biết: x² – 8x + 16 = 0.

Peter and Janet are talking about John, their new classmate. Peter first met John in class yesterday, but Janet hasn’t met him as she was absent.

Janet: “_________?”

Peter: “He’s tall and thin with black hair.”

Số đường tiệm cận của đồ thị hàm số $y=\frac{\sqrt{4-x^2}}{x^2-3x-4}$là bao nhiêu?

Jake is in a café and having lunch with a friend of his.

Jake: “Could you bring me some water?”

Robert is going on holiday with his family next month. Now he’s calling a hotel to book a room.

Robert: “Hello, I’d like to book a room for the nights of the 18th and 19th.”

Receptionist: “_________”

Rue is at a local convenience store. He is looking at things and does not really plan to buy anything. Shop assistant: “Is there anything I can do for you, sir?”

Tính thể tích của khối bát diện đều cạnh a.

It’s Sunday today. Peter is coming over to Susan’s house.

Peter: “Do you mind if I put the television on?”

Susan: “_________.”

Tìm nghiệm của phương trình $\mathrm{s}\text{inx\hspace{0.17em}+\hspace{0.17em}}\sqrt{3}\cos x=\sqrt{3}$.

Kate and James are going to a party tonight. They meet each other at James’ house.

James: “That’s a very nice skirt you’re wearing.”

Kate: “_________.”

Jack and Jim have just finished a game of tennis together. Jack played very well.

Jim: “You really have a good game today, Jack!”

Jack: “_________”

Tìm nghiệm của phương trình: $\mathrm{s}\text{inx}-\sqrt{3}\cos x=0$.

Peter and Ben are talking about sports.

Peter: “What do you think of football?”

Ben: “_________.”

Maria is showing a photo of her house to Laura.

Laura: “What a lovely house you have!”

Maria: “_________.”

Janet wants to go to the cinema with Susan.

Janet: “Do you feel like going to the cinema this evening?”

Susan: “_________”

Linda, Jake, and Jane are classmates. Linda and Jake are on the way home after school. Linda: “Jane didn’t look well today, did she?”

Jake: “_________”

Có 6 quả cầu xanh đánh số từ 1 đến 6, 5 quả cầu đỏ đánh số từ 1 đến 5 và 7 quả màu vàng đánh số từ 1 đến 7. Hỏi có bao nhiêu cách lấy ra 3 quả cầu vừa khác màu vừa khác số?

It’s in the evening. Cindy is talking to her mother.

Cindy: “Mom, would you mind lending me your car tomorrow morning?”

Cindy’s mother: “_________.”

Peter is going on a business trip next week. He is talking to Jake, his colleague.

Jake: “Are you thinking of flying business class?”

Peter: “_________” 

Có bao nhiêu số tự nhiên có 5 chữ số trong đó các chữ số cách đều chữ số đứng giữa thì giống nhau?

Mike and Jenny are now at the office. Mike wants to invite Jenny to come to his house tonight. Mike: “Would you like to come over for dinner with us tonight?”

Jenny: “_________. I must get this finished tonight.”

Cho hàm số $y=\frac{mx-2m-3}{x-m}$ với m là tham số. Gọi S là tập hợp tất cả các giá trị nguyên của m để hàm số đồng biến trên khoảng (2; +∞). Tìm số phần tử của S.

Alice and Jenny are friends. They haven’t seen each other for months. Today, Alice is going shopping in the supermarket and sees Jenny.

Alice: “How are you doing?”

It’s Mary’s birthday this weekend. She is having a party and invites Tom.

Tom: “I’m sorry. I won’t be able to come.”

Mary: “________”