I did't know the answer ,

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I did't know the answer ,
A.so does he B.so did he C.nor did he D.neither he did
he's ,he has to work long hours.
A.healthy,but .unhealthy,but C.healthy,for D.unhealthy,so
How often is the Olympic held?----four years .
A.Every B.Each C.In D.Four
--I knocked over my teacup.It went right over ----keyboard.
--You shouldn't put drinks near --computer.
A.the,/ B.the,a C.a,/ D.a,a
最好说明原因！

（ C ）1．I did't know the answer ,
A.so does he B.so did he C.nor did he D.neither he did
（ B ）2．he's ,he has to work long hours.
A.healthy,but B.unhealthy,but C.healthy,for D.unhealthy,so
（ A ）3．How often is the Olympic held?----four years .
A.Every B.Each C.In D.Four
（B ）4．--I knocked over my teacup.It went right over ----keyboard.
--You shouldn't put drinks near --computer.
A.the,/ B.the,a C.a,/ D.a,a

I didn't know the answer,__.A.so does heB.so did heC.nor did I didn‘t know the answer and( ). I'm sorry,but I don't know the answer. I don't know the answer to the question. 1.-I don't know the answer to this question ( ) I don't know the answer ____the question. I don't know the answer.It's d______. I don't know which is the best answer 和I don't know which th i want know the answer I——frustrated when I did not know the answer I DON'T KNOW THE ANSWER.YOU CAN ASK SANDY.__MAY KNOW IT.(填写适 I don’t know the answer _____ the question.I’ll ask Mr.Hu fo