There was interview with Yao Ming on CCTV-5 yesterday evening. But it was a pity that I missed beginning.

I have _____ work to do that I can’t go out with you. [ ]

This blue car ____________ be Bob’s bcause his car is black.

The number of the students in our grade _______about six ______, ______ of them are girls.

We’ll go shopping if it ________ rain tomorrow.