將來完成時
1.概念:在將來某一時刻之前開始的動作或狀態(tài)
2.時間狀語:by the time of;by the end of+時間短語(將來);by the time+從句(將來)
3.基本結(jié)構(gòu):be going to/will/shall + have done
4例句:By the time you get back,great changes will have taken place in this area
先A
has 跟在be going to will shall 后面變動原形即have
By next Sunday she ( )with us for three weeks.A.will have stayed B.will has stayed
By next Sunday she ( )with us for three weeks.A.will have stayed B.will has stayed
選哪一個?另一個為什么不選?
選哪一個?另一個為什么不選?
英語人氣:766 ℃時間:2019-10-19 13:37:44
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