1, wonders

2, whether

3, hearing

4, has been delayed

5, carved

6, Christmas cards

7, the best

8, to be

IV

1, is being built

2, get/rises

3, is spoken

4, was listening/rang

5, could

6, write

7, have/seen/cry

8, have visited/have/been/will come

V

1, industrial

2, informative

3, completely

4, enjoyable

5, recently

6, inventions

7, mixture

8, instruction

$Làm$

II,

1. wonders

2. whether

3. hearing

4. 

5. carved

6. Christmas cards

7. the best

8. to be/has been

Iv,

1. is being built

2. get...rises

3. is spoken

4. was listening...rang

5. could

6. write

7. have...seen...cry

8. 

V,

1. industrial

2. informative

3. 

4.enjoyable

5. recently

6. inventions

7. mixture

8. 

$#Don$