用所给动词的适当形式填空
（1）Why________(not take)the bus to school？
（2）We don’t have any free time________(do)what we love．
（3）She won’t go to Beijing until her son________(come)back next week．
（4）It’s not easy________(be)a teenager．
（5）Her parents don’t mind her________(watch)TV all day．
（6）He should refuse________(answer)my questions．
（7）She spent her spare time________(stay)with her parents．
（8）Is he practicing________(drive)a car？
（9）Kids have no time________(relax)．
（10）It’s more important________(have) children happy．