1. A new watch was found on the desk by him yesterday.
昨天有一块新手表在课桌上被他发现.
2. A gift will be brought for him by his mom when she comes back from America.
一个礼物要被他的妈妈给他带回来,当她从美国回来时.
3. Robots can be used by us to do some dangerous work.
机器人能被我们用来做一些危险的工作.
4. A picnic is going to be had on by them this weekend.
这周末一次野餐将被他们举行.
5. His homework wasn't finished by him until 11:00 p.m.
他的作业直到晚上11点才完成.
希望能帮到你,祝更上一层楼O(∩_∩)O
有不明白的请继续追问(*^__^*)