one day,Mr.smith 1 out for a walk in the street.he 2 about a

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one day,Mr.smith 1 out for a walk in the street.he 2 about a maths problem.he 3 to work it out.just then he 4 a blackboard in front of him.he 5 to write the problem with a chalk on it.then the blackboard 6 a little.Mr.smith moved with it.but the blackboard moved faster.he 7 not 8 up with it.he 9 and saw the"blackboard" before him.why?it 10 the back of the carriage!
1.A go B goes C was go D went
2.was think wasthinking think was seeing
3.wanted began begins was begin
4.sees saw looks looken
5.began start can could
6.moving moved move stopped
7.can does do could
8.stand keep looked got
9.looked lookat looked up looked down
10.is had has was

one day,Mr.smith 1D went out for a walk in the street.he 2was thinking about a maths problem.he 3wanted to work it out.just then he 4 saw a blackboard in front of him.he 5began to write the problem with a chalk on it.then the blackboard 6moved a little.Mr.smith moved with it.but the blackboard moved faster.he 7 could not 8 up with it.he 9looked and saw the"blackboard" before him.why?it 10was the back of the carriage!
这篇是考察你过去分词用法的；故事是过去发生的,所以用一般过去式,动词用过去分词；
be后面的动词不能是原型,看到都排除；
3.他打算做出来所以后面才会去找黑板,所以用wanted
具体哪个有问题单独问我吧,这文章讲的是一个数学家的故事,原文不知道在哪了,你有兴趣可以找找

one day,Mr.smith 1 out for a walk in the street.he 2 about a One day,the king(国王) went out for a walk in the street.As he Mr Smith---out for a walj in the park every day A has gone a Mr.Smith is near-sighted.One day he is walking in the street ( )he walked in the street ,Mr Smith met with a robbery 英语翻译Mr Smith is taking a walk in the park.Suddenly,he sees s Mr Smith is taking a walk in the park. One day Daddy and I went out for a walk.On the way we saw a Mr Smith wants to take a walk in the park .Mr Smith wants to 英语翻译One day Tom and Bill went out for a walk.On the road the 阅读理解 One day Mr Brown sees a woman in the street with ten ch 英语翻译One day Mr.Black saw a lady in the Street 6 with then ch