The teacher asked the students ________.
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A
what they were doing at that moment
B
what were they doing at that moment
C
how are they doing at that moment
D
what they are doing at that moment
推荐题目
In recent years, the economy of our country _________ rapidly.
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A
is increased
B
has increased
C
increased
D
has been increased
--- I didn’t see you at the party yesterday. Why? --- Because I ________ for an important person from America at that time.
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A
was waiting
B
is waiting
C
will wait
D
have waited
The mobile phone has influenced people’s life a lot since it ______.
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A
invents
B
invented
C
is invented
D
was invented