A big step _____ to strengthen China"s health care systems since we launched an
题型：山东省模拟题难度：来源：
| A big step _____ to strengthen China"s health care systems since we launched an effort in 2008. |
A. has been taken
B. is being taken
C. was taken
D. had been taken |
答案
举一反三
| This is one of the best films _____. |
A. that have been shown this year
B. that have shown
C. that has been shown this year
D. that you talked |
| All _____ done now. |
A. have
B. has
C. has been
D. have been |
| Do you know many man-made satellites _____ space by our scientists since the middle of the twentieth century? |
A. have sent into
B. were carried into
C. have been sent into
D. have been brought into |
— _____ Lin Tao has failed in the exam.
— Yes, he is always very lazy. |
A. I"ve been told
B. I"ve told
C. I"m told
D. I told |
| In the last few years thousands of films _____ all over the world. |
A. have produced
B. have been produced
C. are producing
D. are being produced |
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