What do you think of the EXPO 2010— It’s great， of course. peopleare going to Shanghai for the EXPO 2010.

There is no simple answer, _____ is often the case in science.

Thematerial________,sobecarefulwhenyouwearit [ ]

If you want to be thinner and healthier, you should eat food and take exercise.

The mere fact _____ most people believe nuclear war would be madness doesn’t mean that it will not occur