weather is fine, we’ll go. If ______, ______.

The result was not the same ________ the professor had expected, ________ was rather disappointing.

I don’t think difficult for a Chinesestudent to master a foreign language within five years

There is no possibility ______ all the students can pass the college entrance examination.[ ]

In our life, we can work hard on one task , and then another. In this way, all your dreams can be realized.