What should you consider before ________ for an exercise class?
A. sign up
B. to sign up
C. signing up
D. will sign up
Giải bởi Vietjack
KEY: C
Giải thích: before + Ving: trước khi làm gì
Dịch: Bạn nên cân nhắc gì trước khi đăng kí lớp thể dục?
Gói VIP thi online tại VietJack (chỉ 400k/1 năm học), luyện tập gần 1 triệu câu hỏi có đáp án chi tiết
"What a beautiful dress you're wearing!"
"Thank you. It_____ especially for me by a French tailor".
These students _______so much that they feel very tired and bored.
He promised to telephone ____________ I have never heard from him again.
"Those eggs of different colors are very artistic".
"Yes, they_____ in Russia".
"What happened to the old mail carrier?"
"He_____ to a new neighborhood to work".
______ of all the staff, I would like to wish you a happy retirement.
Total weight of all the ants in the world is much greater than .................
