while we were waiting to land ,an airhostess told us to keep calm and to get off the plane quietly a
题目
while we were waiting to land ,an airhostess told us to keep calm and to get off the plane quietly as soon as it had touched down.
while we were waiting to land ,an airhostess told us to keep calm and to get off the plane quietly as soon as it ___ ____同义句
答案
had landed
举一反三
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