搜搜考试网he has been in his study ___8：00 this morning.A、since B、at C
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he has been in his study ___8：00 this morning.A、since B、at C、for
How long ____ he _____in germany next month?------For about 3 days
A、has stayed B、will stay C、was staying
How long ____ he _____in germany next month?------For about 3 days
A、has stayed B、will stay C、was staying
第一题选a,since后面接时间点,表示自从那时到现在的(一段时间）,for后面接一段时间,其他的不能表示一段时间,不能与完成时连用.第二题选a,这里只有现在完成时可以提问一段时间,一般将来时和过去进行时不可以（注意：提问过去的一段时间时,一般过去式也是可以的）
再问： 谢啦。再问下题。。
there is no bridge ___the river。
A、through B、on C、across
neither my friend nor i __ interested in playing computer games。是由is还是am。
再答： 第一题选C，through 是在里面“通过，穿过” 指四周有东西。across 是指从一边到另一边“横过，渡过” on 是指在表面“在...上面”（参考网友queensayuri）。
第二题选am，neither。。。nor遵循就近原则
再问： 谢啦。再问下题。。
there is no bridge ___the river。
A、through B、on C、across
neither my friend nor i __ interested in playing computer games。是由is还是am。
再答： 第一题选C，through 是在里面“通过，穿过” 指四周有东西。across 是指从一边到另一边“横过，渡过” on 是指在表面“在...上面”（参考网友queensayuri）。
第二题选am，neither。。。nor遵循就近原则
he has been in his study ___8：00 this morning.A、since B、at C
he spent all the morning ——in his study A.locking B.locked C
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He () the Party since 1977 A.joined B.has joined C.has been
Tom has been at this school since he come to China.对since he
The old man has（ ）lonely since his wife left.A.been B.got C.
1.The man has ___ lonely since his wife left .A been B got C
He has been away _____.[ ] A.since a month B.for a month C.f
He has been working in the factory___.A.ever since B.10 year
tom has been in the factory --- he left school.a.since b.as
He has been like this since the morning of June 9