问题描述:
a large crowd ___widly as the pilot ___her plane safely in california
a had cheered was landing
b had cheered landed
c was cheering had landed
d was cheering landed 这题选d我想知道为什么c是错的
a had cheered was landing
b had cheered landed
c was cheering had landed
d was cheering landed 这题选d我想知道为什么c是错的
问题解答:
我来补答展开全文阅读