--- Where is Jack? I can’t find him anywhere.--- He ______ his homework upstairs.
#63513
A
might have done
B
must have done
C
might be doing
D
must do
推荐题目
The lady in this photo _______ be over fifty! She looks so young!
#74348
A
mustn’t
B
can’t
C
must
D
can
-- Whose French book is it?-- It __________ be Lucy’s. Look! Her name is on the book!
#74121
A
must
B
mustn’t
C
might
D
can’t
The pollution problem here seems to get more and more serious .Something ____with it .
#76542
A
has done
B
must be done
C
is doing
D
was done
—David is often absent from class.—Tell him he ________ answer for it if he goes on behaving like that.
#62331
A
shall
B
might
C
would
D
can