I ___________ to phone her all day, but whenver I phone her, the line is engaged.
#101328
A
tried
B
had been trying
C
have tried
D
have been trying
推荐题目
— What did you think of Act I of the play last night?— I’m sorry. The play ________ when I got there.
#104725
A
had been started
B
had been on for half an hour
C
was to start
D
had begun for half an hour
She is a diligent student, and all her spare time she has staying in the library．
#102856
A
is spent
B
spent
C
to spend
D
to be spent
Internet, as well as telephones, ____ an important part in daily communication.
#102462
A
is playing
B
have played
C
are playing
D
play