Question

补全句子

（1）这孩子费了很大劲计算那道数学题
The ___ had problems ___ ___the math ___.
(2)Sam已连续滑冰两小时，对吗？
Sam ___ ___ ___ for two hours,___ ___?
(3)老师鼓励我们对理科感兴趣
The teacher ___us ___ ___an___ ___science

Answer 1

1.child,working out,problem.
2.has kept skating,hasn't he
3.encourages,to have/draw/form,interset in

Answer 2

1. child, calculating, problem
2. has kept skating, hasn't he
3. encourage, to have, interesr in