问题描述：
it (seems) you are right括号为什么填seems
it is very cold,I think it (is raining)outside括号中为什么填现在时
I need some paper I(will bring)some for you括号中为什么填将来时
he(sat)down and began to read his newspaper括号中为什么填过去时
what(were)you(doing)at five yesterday afternoon为什么不能填一般过去时
I can't find my pen.who(took)it括号中为什么不能填现在完成时
it is very cold,I think it (is raining)outside括号中为什么填现在时
I need some paper I(will bring)some for you括号中为什么填将来时
he(sat)down and began to read his newspaper括号中为什么填过去时
what(were)you(doing)at five yesterday afternoon为什么不能填一般过去时
I can't find my pen.who(took)it括号中为什么不能填现在完成时
问题解答：
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