Climbing Mount Tai           great skills and           not without risk.
#102025
A
requires; is
B
required; was
C
required; are
D
required; were
推荐题目
He said that his bike _____ stolen and he ____ telephone the police.
#101116
A
is; would have to
B
has; will have to
C
has been; will have got to
D
had been; would have to
Mr. Blake ____ Shanghai in a few days. Do you know when the earliest plane ____ on Sunday?
#101278
A
is leaving, is taking off
B
leaves, takes off
C
is leaving, takes off
D
leaves, is taking off
.Mike didn’t notice Alice entering his room. He __________ a phone call.
#104450
A
answered
B
has answered
C
was answering
D
is answering
 ---- Can I borrow your car?---- Sorry. My car __________ at the garage.
#100996
A
is being repaired
B
is repaired
C
will be repaired
D
has been repaired