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TheAmericanshadtoputoffthespaceshuttle.A.launchB.tolaunchC.launchingD.launched

题目详情
The Americans had to put off ________ the space shuttle.
A.launch
B.to launch
C.launching
D.launched
▼优质解答
答案和解析
答案C
点拨:推迟做某事表示为put off doing something.