About _______of the engineers in my company seem to be in their _________．

―Whatyour English teacher doing now?―He _____ a newspaper.

What do you think of my answer to the question?—-Sorry, What’s that? I _______ about something else.

My brother has ________ good memory, but he has _______ poor eyesight.

This is a map _____China. If you want to go traveling, you’d better take it with you. [ ]