China__ send people into space before, but now we can.. A. can’t B. couldn’
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China__ send people into space before, but now we can.. A. can’t B. couldn’t C. may not |
答案
B |
解析
中国以前不能把人送入太空,但是现在我们能。以前不能,所以要用一般过去时,所以选B。 |
举一反三
Tina_________wait _________ see her parents .A.can; for | B.can’t; for | C.can; to | D.can’t; to |
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