The split between humans and apes is believed by scientists______15 to 20 million years ago.
#90155
A
to be occurring
B
having occurred
C
to have occurred
D
to occur
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With nine months _______,we feel sad that our school life will be ending for we’ll have to say good-bye.
#96569
A
going
B
gone
C
goes
D
to go
I got to the office earlier that day，________the 7∶30 train from Paddington.(2013·大纲全国，25)
#88740
A
caught
B
to have caught
C
to catch
D
having caught
______ almost all our time to our schoolwork in the past three months, we have almost no time for fun and play．
#97822
A
Having devoted
B
Devoted
C
To devote
D
To have been devoted
After half a year’s training, they were made entirely used ____ underwater.
#97389
A
stay
B
to stay
C
to staying
D
staying
Taobao．com has begun selling tickets online for international flights， to cut the market share of Ctrip．corn and other competitors．
#96778
A
to aim
B
having aimed
C
aiming
D
being aimed