They have been skating __________.
|
A．for three hours |
B．since three hours ago |
|
C．three hours ago |
D．since three hours |
The scientist_______ everyone ______ our environment .
|
A．urge; protect |
B．urged; to protect |
|
C．urges; protect |
D．urged; protect |
Tim is weak in math, so he is trying _________ up with other students now.
|
A．to catch |
B．catch |
C．catching |
D．caught |
Every student in our calls is looking forward to ______a good future.
|
A．have |
B．had |
C．has |
D．having |
I must return the two books to the library. I _____ them for 20 days.
|
A．borrowed |
B．kept |
C．have kept |
D．have borrowed |
I think these sunglasses make me look ______. What do you think?
|
A．mysterious |
B．relax |
C．hungry |
D．safe |
