【推荐1】For four days the town ________ (遭到连续攻击). （根据汉语提示完成句子）

【推荐2】他们在山区工作时肯定受了不少苦。(情态动词+ have done)
They ___________________________ when they worked in the mountain area.

【推荐2】句式仿写
1. Users who inject the drug are also in more danger if they share needles with other users.
We should always remember those ___________________（曾帮助我们）when we were in great need.
2. Using cocaine increases the user’s heart rate and blood pressure.
______________________（把孩子单独留在家里） is dangerous.
3. Now I work in a centre for drug addicts, helping others to stop taking drugs.
The writer has stayed in the school for three days, ______________________（教孩子们怎么写作）.
4. Users become addicted to crack cocaine much more easily if they smoke it.
Some Americans ______________________（迷上了减肥）, though their efforts always end in failure.
5. As a result, cocaine users sometimes have heart attacks.
She didn’t work hard before the test. ______________________（因此，她考试不及格）.

【推荐3】他胡须浓密，头发又长又白，有时会像刚遭了电击似的竖起来。
He had a thick moustache and long white hair, ______ sometimes ______ on end as though he _______ just ______ an electric shock.