---Who cleaned the classroom?---Mary ________.
#41612
A
can
B
does
C
did
D
is
推荐题目
While she was trying to pass a truck before her, she __________ another car coming.
#42581
A
saw
B
was seeing
C
has seen
D
sees
I didn’t hear you, because I ________ yesterday’s football game.
#41544
A
watch
B
am watching
C
watched
D
was watching
--Do you know where Mr Brown is?---He _______ Beijing for two days.
#37919
A
has been to
B
has gone to
C
has been in
D
went to