Chọn phương án đúng (ứng với A hoặc B, C, D) để hoàn thành các câu sau.
Câu 1: He wanted to know when__________.
A. will we have the math exam
B. will have the math exam
C. would we have the math exam
D. we would have the math exam
Câu 2: If cars and motorbikes were banned in big cities,_______.
A. there would be more air pollution
B. there would be less air pollution
C. there will be more aie pollution
D. there will be less air pollution
A.
B.
C.
D.