The problems____ Tony has seem insurmountable.
A. what
Chọn đáp án C
People____ outlook on life is optimistic are usually happy people.
The man____ I introduced you to last night may be the next president of the university.
The part of town where I live is very noisy at night, ____ makes it difficult to sleep.
Cathy is trustworthy. She's a person upon____ you can always depend.
They didn't thank us for the meal before they left____ I thought was very rude of them.
You need to talk to a person____ you can trust. You will feel better if you do.
I'm looking for an electric can opener____ also can sharpen knives.