I decided to go to the library as soon as I _______.
A. would finish what I did
B. finished what I did
C. finished what I was doing
D. finish what I did
Cấu trúc: Mệnh đề 1 + as soon as + Mệnh đề 2
Cả 2 mệnh đề trong trường hợp này thuộc thì quá khứ đơn
It’s essential that every student ________ the exam before attending the course.
A. pass
B. passes
C. would pass
D. passed
Cấu trúc: It + be + adj + (for O) + to V ….