What should you consider before ________ for an exercise class?
A. sign up
B. to sign up
C. signing up
D. will sign up
KEY: C
Giải thích: before + Ving: trước khi làm gì
Dịch: Bạn nên cân nhắc gì trước khi đăng kí lớp thể dục?
He promised to telephone ____________ I have never heard from him again.
These students _______so much that they feel very tired and bored.
"What a beautiful dress you're wearing!"
"Thank you. It_____ especially for me by a French tailor".
"What happened to the old mail carrier?"
"He_____ to a new neighborhood to work".
.................. actress's life is in many ways unlike that of other women.
He went to a school which ________ good manners and self- discipline.
“The longest fish in the contest was eighteen inches long".
"It_____ by Thelma Rivers".
"Those eggs of different colors are very artistic".
"Yes, they_____ in Russia".