Seventy percent of the students _____ taken part in the work and seventy percent
题型：同步题难度：来源：
Seventy percent of the students _____ taken part in the work and seventy percent of the
work _____been finished. |
| [ ] |
A. has, has
B. had , had
C. has, have
D. have, has |
答案
| D |
举一反三
It is reported that a large number of people _____ been killed and the number ____ added up to
nearly 70,000 |
| [ ] |
A. has; has
B. have; have
C. has; have
D. have; has |
-What have they made up their minds to do during the summer vocation?
-They ______ to cycle around the country on their own. |
| [ ] |
A. are determined
B. are decided
C. have determined
D. have been decided |
—Why is your professor so happy recently?
—Because the theory she insisted on correct. |
| [ ] |
A. is proved
B. proving
C. was proved
D. has proved |
The scientists claimed( 声称) to _______ a jet plane that uses atomic energy as propelling _____,
but they can’t produce an atom of evidence to prove it. |
| [ ] |
A. design; power
B. have designed; power
C. design; force
D. have designed; strength |
The widespread of super-hybrid rice around the world ______the lives of millions and millions of
people suffering from hunger to a great level. |
| [ ] |
A. improved
B. is improving
C. has improved
D. has been improving |
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