— When did the meeting begin?—At four o’clock.It  ______ for 15 minutes.
#53894
A
was on
B
began
C
has been on
D
has begun
推荐题目
Jim was walking along the river_______ he heard someone_______ "Help! Help!
#56199
A
when; shout
B
while; shouting
C
as; to shout
D
when; shouting
 If you are in trouble, you can _____help from the policeman.
#55644
A
look over
B
ask for
C
check
D
think about
They don’t seem __________who ________for help.
#62082
A
know , to talk
B
know, to talk to
C
to know, to talk
D
to know, to talk to