Because I lost my key, I had to pound on the door to wake my roommate.

-> if

The bad flood stopped us from collecting fruits on the farm.

-> If .........................

-> Had ....................................

-> It is such................................

-> Unless............................

Rewrite

1. Students mustn't run or be noisy in the school building.(allowed)

-> Running and ............................ in the school building.

2. I try my best to learn English so that I can find a good job.( intention)

-> I try my best to learn English ......................... a good job.

3. The cost of living has increased considerably in the past months.(rise)

-> There has ............................................... the cost of living in the past months.

4. Their chances of success are small. (likely)

-> It's not very......................

Rewrite :

1. The heavy rain made it impossible for us to have our picnic.

-> The heavy rain stopped ......................................

2. Can I hand in the assigment two days after the deadline?

-> Would it be .............................

3. Valerie found it hard to concentrate on her book because of the noise.

-> Valerie had ...........................

Rewrite

1.Thanks to technology advances, we can predict some weather disasters such as hurricanes and storms.

-> Thanks to .......................................................................................(predicted)

2. In some cases, lightning can result in wildfires.

-> In some cases, .................................................................................(caused)

3.After the latest landslide in Sapa, the local government held a training session to teach people how to protect themselves in some natural disasters.

-> After ...............................................................................................( was).

Write an email to your foreign friend about a natural disaster happening in Vietnam that you heard about.

You should base on :

-What type of natural disaster is it?

-When/where did it occur? -What were the effects of it?

-What was/ has been done to help the victims of the disasters?