1. was published

2. visited

3. is going to rain

4. working

5. have broken

6. enjoys

7. are

8. will be built

9. returns

10. to tell

performance

37. I suggest that used bottles for recycling.

38. These dead flowers, which you put them in the vase 10 days ago, smell awful.

39. If you study hard, you won't fail in the exam.

40. Since the rain was heavy, they took a taxi to the airport.

29. Scientists

30. occurrence

31. dripping

32. kindly

33. modernized

34. considerate

to explain

have just gone

A

A

1. 

which/that

whose

which

who

2. 

who

whose

who

which

6. Although her income is quite low, she can't resist buying new things.

7. She gave us some tips about identifying poisonous mushrooms.

8. I will pick you up as soon as I leave the shopping mall.

9. While Emily was browsing online for items, her sister was playing the piano. 

10. The eruption of a volcano results in a tsunami.

B

1. How long does the game show last?

2. How long does your mother spend watching TV?

3. What are they planting in the garden?