13. Maybe the receiver is off the hook.
可能是听筒没放好。
还能这样说：
There may be someone who didn't replace the receiver.
It's possible that the receiver is off the hook.
应用解析：
angle with a silver hook 行贿；用银钩钓鱼；
by hook or (by) crook 千方百计，不择手段；
drop off the hooks 死，翘辫子；离职
14. What kind of sound is it making?
发出什么样的声音？
还能这样说：
What noise does it make?
Which sound can you hear?
谚语：
Empty vessels make the greater sound.
空桶响声大。
15. I think my phone doesn't work.
我想是我的电话坏了。
还能这样说：
Maybe my phone is out of order.
I think my phone isn't working.
应用解析：
do its work 发生效力，起作用；
go about one's work 着手工作；
in and out works.不固定的工作
16. I broke my phone this morning.
我今天早上把电话摔坏了。
还能这样说：
My phone dropped this morning.
My phone was broken this morning.
应用解析：
The breaks were against us.
命运跟我们作对。
17. I'll call someone to repair it.
我会打电话让人来修的。
还能这样说：
I'll ask someone to deal with it.
Someone will be called to handle it.
应用解析：
have repair to 依赖，依靠；
repair to 到……去（特指成群地去或经常去）；
repair to sb. for aid 向某人求助