To find the right job in a desired field, it is necessary that you ______ what the current trends are.
A: know
B: have known
C: knew
D: did know
A: know
B: have known
C: knew
D: did know
举一反三
- To find the right job in a desired field, it is necessary that you ____ what the current trends are.
- ______, I would have phoned you. A: If I knew it B: Had I known it C: If I know it D: Did I know it
- If you had joined the chat room ten minutes ago, you _____________what we were talking about. A: would know B: would have known C: knew D: had known
- Both his parents look sad. Maybe they ______what’s happened to him. A: knew B: have known C: must know D: will know
- Both his parents look sad. Maybe they_______ what's happened to him. A: knew B: have known C: know D: will know