Chia động từ trong ngoặc

1. When energy ___________ (come) from the wind, we call it wind energy.

2. Lan promises she ___________ (finish) her homework tonight.

3. The people in this district ___________ (use) solar energy to replace energy from coal at the moment.

4. Last night, I was watching a documentary when the light ___________ (go) out.

5. Do you think robots ___________ (replace) human in the future?

6. Tom ___________ (be) sick so he couldn’t go on the trip to Washington D.C. yesterday.

7. In my opinion, we _________ (not use) coal for cooking and heating in the future. 

8. Pete ___________ (forget) to turn off the TV after watching it last night.

9. I ___________ (look) for my car key now. I don’t remember where I left it.

10. Sonya: When ___________ you ___________ (buy) that Solowheel?

Ben:  Last month.