The students        busily when Miss Brown went to get the book she      in the office.
#101482
A
were writing; left
B
wrote; had left
C
had written; left
D
were writing; had left
推荐题目
I won't buy this iPhone unless the price ________ to under 2,000 yuan. 
#99484
A
reduces
B
will be reduced
C
has reduced
D
is reduced
Some of the wolves there _____ the fur.
#99381
A
are hunting
B
are hunting for
C
hunt for
D
are hunted for
Hurry! The plane ______ . You know, it ______at 3:15.
#100058
A
takes off, takes off
B
is taking off, takes off
C
takes off, is taking off
D
is taking off, is taking off