题目内容
It has been about twenty years since they____.
查看答案
搜索结果不匹配？点我反馈
更多问题
判断以下语法表述的对错。In English, there are only two tense forms of verbs: one is the present tense, and the other is the past tense.
判断以下语法表述的对错。In the sentence “He is living here.”, the verb “is living” is perfective aspect.
判断以下语法表述的对错。In the sentence “He enjoys living here. ”, the predicate verb “living” is progressive aspect.
判断以下语法表述的对错。In the sentence “He is glad to have lived here for 10 years.”, the predicate verb “to have lived” is progressive aspect.
微信支付 
支付宝支付