--- He worked out such different questions at a very young age.--- Oh, he ______ a very smart student then.
#63131
A
could have been
B
should have been
C
might have been
D
must have been
推荐题目
All passengers______go through safety check before they take a plane.
#74193
A
can
B
may
C
must
D
ought
--- What kind of house do you want to have? Something big? --- Well, it be big --- that’s not important.
#63616
A
mustn’t
B
needn’t
C
can’t
D
won’t
-- ________ you tell me how to write it in English?-- I'm sorry, I can't.
#75421
A
Can
B
Must
C
May
D
Need
You ______ your coffee before it turns cold.
#76158
A
should drink
B
should drinks
C
should drinking
D
should to drink
