—Someone is knocking at the door. Who ______ it be? —It ______ be Tom. He is still in the school.
#52340
A
may; can’t
B
can; mustn’t
C
might; couldn’t
D
could; may not
推荐题目
–– When did they arrive?–– They ______two hours ago .They ______ here for two hours .
#58577
A
arrived; have arrived
B
arrived; have been
C
got; have been
D
reached; have reached
---Jane, I can’t find Lucy in the classroom. ---Oh, she ________ the piano in the music room.
#53550
A
has played
B
was playing
C
will play
D
is playing
Mum ________ clothes, so I have to look after my younger sister.
#54056
A
washes
B
is washing
C
washed
D
was washing