填空题

选择合适的词填空。
It is not easy ______ this problem. Do you know the answer (solve; to solve)

【参考答案】

to solve
<上一题 目录 下一题>
热门 试题

填空题
______ the roof again, we need more money. (paint)
填空题
Can I ask you ______ something for me (do; to do)
相关试题