The split between humans and living apes is thought by some scholars ____ 15 to 20 million years ago.
A.to occur
B.occurring
C.to have occurred
D.having occurred
试卷相关题目
- 1Simon made a big bamboo box ________ the little sick bird till it would fly.
A.keep
B.kept
C.keeping
D.to keep
开始考试点击查看答案 - 2The chair looks rather hard, but believe it or not; it is very comfortable _____.
A.sitting
B.to sit
C.sitting on
D.to sit on
开始考试点击查看答案 - 3______himself to his lab research, the famous scientist missed ________ from the liver cancer.
A.Devoted; being saved
B.Devoting; being saved
C.Devoted; to be saved
D.Devoting; to be saved
开始考试点击查看答案 - 4______ seems to be one of the main reasons for many people ________ in today's world.
A.Having an adventure; to travel
B.To have an adventure; traveling
C.Have an adventure; to travel
D.To give an adventure; traveling
开始考试点击查看答案 - 5I send you 100 dollars today, the rest ______ in a year.
A.follows
B.followed
C.to follow
D.being followed
开始考试点击查看答案 - 6He hurried to the booking office only ______ that all the tickets had been sold out.
A.to tell
B.to be told
C.telling
D.told
开始考试点击查看答案 - 7I will go to Beijing on business tomorrow. Do you have anything ______ to your son in Beijing University?
A.to be taken
B.to take
C.taken
D.being taken
开始考试点击查看答案 - 8Don't come and see me today – I'd rather you ________ tomorrow.
A.to come
B.come
C.came
D.coming
开始考试点击查看答案 - 9Pleasant as they made it ______ in Jiuzhaogou, we felt tired after the long journey.
A.to travel
B.travel
C.travelled
D.travelling
开始考试点击查看答案 - 10__________ the assignment made his father lose his temper.
A.The boy's not having done
B.The boy not having done
C.The boy's having not done
D.The boy having not done
开始考试点击查看答案