timedoingsth造句（doingsth句型造句）

1.We often waste much time playing computer games.我们经常花大量时间去打游戏了。

2.I had to spend some time doing last-minute rewrites. 我不得不花一些时间作最后的改写纠正。

3.I have a difficult time answering the question .我很难去回答问题。