I think students______ to do homework with friends.
My mother didn’t expect ______ such a lovely present from me!
The Trojan War ______ by Helen and her beauty.
When the teacher ______ how to do the experiment, the bell rang.
I ______ my mind to study harder since I visited the Shanghai Supercomputer Centre.
As a father, Einstein was just as ______ as any other father in the world.