переводишь их на косвенную речь
3 Children must spend a lot of time outdoors,
4 Wendy should buy a present for her freind,
5 Tom couldn"t dance when he was four,
6 We don't have to get up early,
7 Don was able to write the test well,
8 I am able to do it,
9 You can't go to Washington, D.C. now,
10 Parents shouldn't shout at their children,