1.Mr Smith ___ at this school since he ___ to Zhuhai.A:has been taught; came B:has taught; has comeC:has been teachin; has come D:has been teaching; came2.When did you start raising money for the Great Green Wall?A:Since two years ago B:Two years ago
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1.Mr Smith ___ at this school since he ___ to Zhuhai.A:has been taught; came B:has taught; has comeC:has been teachin; has come D:has been teaching; came2.When did you start raising money for the Great Green Wall?A:Since two years ago B:Two years ago
1.Mr Smith ___ at this school since he ___ to Zhuhai.
A:has been taught; came B:has taught; has come
C:has been teachin; has come D:has been teaching; came
2.When did you start raising money for the Great Green Wall?
A:Since two years ago B:Two years ago
C:For two years D:Before two years
1.Mr Smith ___ at this school since he ___ to Zhuhai.A:has been taught; came B:has taught; has comeC:has been teachin; has come D:has been teaching; came2.When did you start raising money for the Great Green Wall?A:Since two years ago B:Two years ago
1.D
since后面是一个时间点,用过去时
since+过去的一个时间点表示从过去开始到现在的一段时间,所以前面用现在完成时
2.B
问句是问从什么时候开始,问的是过去的一个点时间,回答就应该是过去的某一点时间,即两年前
1.Dsmith先生来到深圳以后,一直在这个学校教书。
2.B问句里用的是did,所以回答的应该是一个时间点,A和C都表示时间段,D表达是错误的。
D has been doing sth
Mr Smith 自从来珠海后一直在教书. 前半句现在完成时,表示教书动作的持续,后一句表示来珠海的动作,因此用过去式
A
你什么时候开始攒钱去长城?
自从两年前.
第一题,第二个空用过去式,排除B C,因为句子的意思是他来后到现在一直在教书,所以用现在完成进行时;第二题,是说自从两年以前的某时刻,所以要用since
水平所限,解释有很多不足,还望见谅!!