Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
Look! She is laughing. She______ something funny or happy.
A.can’t have had
B.must have had
C.must be having
D.could have had

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
It is hot in here. ______ you open the window a bit, please?
A.Should
B.Might
C.Could
D.Must

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
You should also show your mother that you are ______ and mature.
A.respond
B.responsibility
C.response
D.responsible

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
I know what you mean. You ______ explain further.
A.won’t
B.needn’t
C.mightn’t
D.mustn’t

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
Your diving equipment ______ regularly if you want to keep it in good condition.
A.must be cleaned
B.may be cleaned
C.can clean
D.can’t be cleaned

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
My grandpa, who is a conservative person, thinks that I ______ to get a job in a state-owned organization after university.
A.must
B.shouldn’t
C.ought
D.should

Điền đáp án đúng vào ô trống
Một viên gạch hình vuông có cạnh 25cm. Tính chu vi hình chữ nhật được ghép bởi 4 viên gạch như thế?
Đáp án : (cm)
A.250
B.
C.
D.

Điền đáp án đúng vào chỗ trống:
Hình sau có mấy hình vuông?
Cóhình vuông
A.2
B.
C.
D.

Tính giá trị biểu thức 
(68 + 52) : 8 =
A.15
B.
C.
D.

Tính nhẩm:
 
9 × 5 =
5 × 9 =
45 : 5 =
45 : 9 =
A.45
B.45
C.9
D.5