Professor Smith, along with his assistants, _________on the project day and night to meet the deadline.
#102351
A
work
B
working
C
is working
D
are working
推荐题目
I feel so excited！At this time tomorrow morning I to Shanghai.
#101013
A
will fly
B
will be flying
C
will have been flying
D
am flying
I didn’t like Aunt Lucy, who＿＿without warning and bringing us presents.
#104416
A
always turned up
B
has always turned up
C
was always turning up
D
was always turned up
—Why didn’t you come to the cinema with us last Saturday? —Oh，sorry．But I the film．
#101875
A
see
B
saw
C
have seen
D
had seen
— Have you been here before?— Yes. This is the third time that I ______ to Shanghai.
#100742
A
come
B
came
C
have come
D
had come