Earth is believed ______ by an object the size of Mars at some point in the distant past before itssurface cooled.
#88257
A
to be hit
B
to have hit
C
to have been hit
D
to hit
推荐题目
Afraid that he might get his hands________, the monkey had the cat _______chestnuts out of the fire.
#89424
A
burnt, picked
B
burn, pick
C
burn, picked
D
burnt, pick
_______ many times , he still couldn’t understand it．
#97295
A
Told
B
Having been told
C
He was told
D
Though he had been told
In some parts of London, missing a bus means _______ for another hour.
#98622
A
waiting
B
to wait
C
wait
D
to be waiting
_____________ many times, the problems were settled at last.
#95310
A
Having discussed
B
Being discussed
C
To be discussed
D
Discussed