1.I'm__(true)sorry that I can't go with you .I have a lot to do this afternoon.
2.The illness can make you feel tired and ____(not strong).
3.The mother looked_____(angry)at her naughty daughter.
4.You ____(not know)what the pear tastes like if you don't eat it.
5.The engineer_____(search)for some information on the Internet in the study while his wife was cooking in the kitchen.
6.I don't think Aunt Wu would mind____(take)care of our children while we're away.
7.It often rains here.You'd better_____(take)an umbrella with you.
8.Why does he keep ___(forget)what he should remember?
9.National Day is coming.We're going to celebrate the ____(sixty)birthday of the People's Republic of China.