Lá cây mây là loại lá biến dạng nào?
A.Lá bắt mồi.
B.Lá vảy.
C.Lá biến thành gai.
D.Lá biến thành tay móc.

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
When you have a small child in the house, you ______ leave small objects lying around.
A.should not
B.needn’t
C.ought to
D.may not

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
When I was five years old, I ______ read and write.
A.can
B.should
C.may
D.could

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
______ you mind if I brought a colleague with me?
A.Would
B.Can
C.Might
D.Must

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
You ______ be right but I am not sure so I am going back to check anyway.
A.can
B.must
C.might
D.should

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
I’m not happy that my parents ______ a time for me to come home in the evening.
A.setting
B.sets
C.has set
D.set

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
Mary decided not to join us for dinner. She ______ stay at work to finish the marketing report.
 
A.may
B.had to
C.must
D.can

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
John ______ drive when he was eighteen.
A.cannot
B.would rather not
C.could not
D.might not

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
The machine ______ be turned on by pressing this button.
A.might
B.ought to
C.can
D.should

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
You ______ book the tickets for the play in advance because they sell out quickly.
A.may
B.have to
C.could
D.mustn’t