When energy ___________ (come) from the wind, we call it wind energy.
comes
Lan promises she ___________ (finish) her homework tonight.
will finish
The people in this district ___________ (use) solar energy to replace energy from coal at the moment.
are using
Last night, I was watching a documentary when the light ___________ (go) out.
went
Do you think robots ___________ (replace) human in the future?
will replace
Tom ___________ (be) sick so he couldn’t go on the trip to Washington D.C. yesterday.
was
In my opinion, we _________ (not use) coal for cooking and heating in the future.
won't use
Pete ___________ (forget) to turn off the TV after watching it last night.
forgot
I ___________ (look) for my car key now. I don’t remember where I left it.
am looking
Sonya: When ___________ you ___________ (buy) that Solowheel? Ben: Last month.
did you buy
1. During this trip, everyone must wear a ___________ for safety. A. handlebar B. seatbelt C. panel
B. seatbelt
2. After watching the teaser of the film with lots of fairies and wizards, I guess it is a ____. A. comedy B. documentary C. fantasy
C. fantasy
3. People often think Santa Claus and pine trees are the ___________ of Christmas. A. symbols B. performance C. parade
A. symbols
4. ___________ plastic is warned to be harmful for environment, people still use it daily due to its convenience. A. Because B. Although C. But
B. Although
5. Electric cars are becoming popular nowadays due to theirs ___________ features. A. polluting B. eco-friendly C. inconvenient
B. eco - friendly
