Both his parents look sad. Maybe they_______ what's happened to him.
A: knew
B: have known
C: know
D: will know
A: knew
B: have known
C: know
D: will know
B
举一反三
- 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: konw B: must know C: have known D: knew
- Both his parents look sad . Maybe they _________what's happened to him. A: knew B: haveknown C: willknow
- Both his parents look sad. Maybe they __________ what’s happened to him.
- Both his parents look sad. Maybe they_what happened. A: knew B: knows C: have known D: has known
内容
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智慧职教: Both her parents look sad. Maybe they ( ) what had happened to her.
- 1
If I ___________his email address, I would have sent him a message yesterday. A: know B: knew C: had known D: have known
- 2
If only I _______ about his coming, I would have met him at the station. A: would know B: had known C: have known D: knew
- 3
If I (__) his e-mail address, I would have sent him a message yesterday. A: have know B: had known C: will know D: know
- 4
I would ask George to lend us the money if I ______ him. A: had known B: knew C: have known D: know