--- Why on earth didn’t you answer the door?--- I’m terribly sorry, but the telephone _______, too.
#100651
A
is ringing
B
was ringing
C
rang
D
was about to ring
推荐题目
Three fourth of the homework _______ today .
#103384
A
has finished
B
has been finished
C
have finished
D
have been finished
--Has the train arrived yet?---No, it ought to ___ twenty minutes ago.
#104029
A
arrive
B
have arrived
C
be arriving
D
be arrive