Question

1. If we (not stop) ____ cutting down so many trees, we will endanger our oxygen supply.

2. You (ever/ live)_____________________  in a smart house?

3. This Robot is designed to be able (open) ___________ the door, and reach for objects.

4. People (know)_______________ little about the Internet twenty years ago.

5. She (not write) _____________ to you if she leaves.

6. My brother (listen) ____________________ to music now.     

7. They (visit) ____________________Da Lat next week.

8. Long is thirsty. He’d like (drink) ____________________some water.

Answer 1

1 don't stop

2 Have you ever lived

3 to open

4 knew

5 won't write

6 is listening

7 are going to visit

8 to drink

Answer 2

1. don't stop

2. Have you ever lived

3. to open

4. knew

5. won't write

6. is listening

7. will visit

8. to drink

Answer 3

1. don't stop

2. Have you ever lived

3. to open

4. knew

5. won't write

6. is listening

7. are going to visit

8. to drink