Here are the completed sentences with the correct forms of the verbs:

1. **When I shouted, they...off the roof and...away. (jump/run)**
- When I shouted, they **jumped** off the roof and **ran** away.

2. **Don't phone her just now. She...to her boss. (talk)**
- Don't phone her just now. She **is talking** to her boss.

3. **Oh! You...a shave! You look strange without a beard! (have)**
- Oh! You **haven't had** a shave! You look strange without a beard!

4. **I...military service for eighteen months. This is my last month. (do)**
- I **have done** military service for eighteen months. This is my last month.

5. **We...for about four hours when I realized that something was wrong with one of the tyres. (travel)**
- We **had been traveling** for about four hours when I realized that something was wrong with one of the tyres.

6. **Mary will be ready soon. She...a bath at the moment. (have)**
- Mary will be ready soon. She **is having** a bath at the moment.

1. **When I shouted, they...off the roof and...away. (jump/run)**
- When I shouted, they **jumped** off the roof and **ran** away.

2. **Don't phone her just now. She...to her boss. (talk)**
- Don't phone her just now. She **is talking** to her boss.

3. **Oh! You...a shave! You look strange without a beard! (have)**
- Oh! You **haven't had** a shave! You look strange without a beard!

4. **I...military service for eighteen months. This is my last month. (do)**
- I **have done** military service for eighteen months. This is my last month.

5. **We...for about four hours when I realized that something was wrong with one of the tyres. (travel)**
- We **had been traveling** for about four hours when I realized that something was wrong with one of the tyres.

6. **Mary will be ready soon. She...a bath at the moment. (have)**
- Mary will be ready soon. She **is having** a bath at the moment.