The students _______ busily when Miss Brown went to get a book she _______ in the office.
#103023
A
had written; left
B
were writing; has left
C
had written; had left
D
were writing; had left
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-----Tom. You look very bored and tired.-----Yes, I ______ my father on the farm until seven o’clock this morning.
#104828
A
have been helping
B
had helped
C
was helping
D
am helping
– Do you know the West Lake in Hangzhou? – Yes, this is the third time that I ____ this beautiful city.
#103081
A
visit
B
visited
C
have visited
D
had visited
--- Listen! It is raining. --- Oh, really! I ________ it at all.
#103517
A
didn’t realize
B
don’t realize
C
haven’t realized
D
hadn’t realized
. The reason for all the changes being made _______to us yet.
#103486
A
has not explained
B
has not been explained
C
did not explained
D
were not explained
He _____ as a national hero for winning the first gold medal for his country in the Olympics.
#101183
A
regarded
B
was regarded
C
has regarded
D
had been regarded