— Has Jack finished his homework yet? — I have no idea；he ＿＿it this morning.
#104425
A
was doing
B
had been doing
C
has done
D
did
推荐题目
The task _______ in an hour. Then we can go home and have a good rest.
#100141
A
was finished
B
will be finished
C
has been finished
D
can’t finish
The car ____ at the present speed until it reaches the foot of the mountain at about ten o'clock tonight.
#99039
A
went
B
is going
C
goes
D
will be going
Investment by Chinese companies in the US _____ rapidly in recent years.
#99065
A
was growing
B
has been growing
C
had grown
D
will be growing
Polly observed that she ______ by a tall man in a dark coat when she ______ the faces around her on the train.
#102499
A
was watched; stared at
B
was being watched; glanced at
C
was being watched; glared at
D
was watched; looked at