― I don’t think the man enjoys his life, ______? ― No, he can’t. That poor man. [ ]

The population in China is much larger than _____ in America, right — So it is.

I’ve become good friends with several of the students ___helped me in the English speech contest last year.

The doctor looked over the woman carefully，but he couldn’t what was wrong with her．

The telephone was invented _____Bell______1876.