1.-> The last time Hoa was seen was on her birthday.

2.Everything in the house is said to have been stolen (by the thief).

3.However hard she works, she never seems to succeed.

4. I am afraid of being left alone at home at night.

5.  Would you mind if I came to the club with you tonight?

Ẽ2

 1.oDn't bother to telephone me when you arrive.

2. The garden is too small for us to build a swimming pool.

3. William was capable of doing better work.
4. I'd prefer to chat online at the moment.
5. She stayed in the shade to avoid getting sunburnt.

=>
I/
1. The last time Hoa was seen was on her birthday.
2. Everything in the house is said to have been stolen by the thief.
3. Hard as she works, she never seems to succeed.
4. I am afraid that they leave me alone at home at night. / I am afraid of being left alone at home at night.
5. Would you mind if I came to the club with you tonight?

II/
1. Don't bother to telephone me when you arrive.
2. There is no room in the garden for a swimming pool to be built.
3. William was capable of doing better work.
4. I'd prefer to chat online at the moment.
5. She stayed in the shade to avoid getting sunburnt.