The phone had been ringing for three minutes before it            .
#104247
A
answered
B
had answered
C
was answering
D
was answered
推荐题目
 In general, most tennis ________ on hard courts or on clay.
#99493
A
plays
B
is played
C
has played
D
has been played
In the war,the army  supplies during several months.
#103950
A
furnish with
B
is furnished
C
is furnished with
D
are furnished at
The school board is made up of parents who ________ to make decisions about school affairs.
#100584
A
had been elected
B
had elected
C
have been elected
D
have elected