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China has become the third country______it's astronauts into space after Russia and US.A.send.B.sends.C.sending.D.to send哪个选项?说出原因

题目详情
China has become the third country______it's astronauts into space after Russia and US.
A.send.B.sends.C.sending.D.to send
哪个选项?说出原因
▼优质解答
答案和解析
sending
因为China和send之间是主动的关系,所以用动词的ing形式.