The person we spoke to ____ no answer at first.
I can’t leave. She told me that I _______ stay here until she comes back.
We should make____a rule for us that the last to leave the classroom shall turn the light off.
_______ you’ve got a chance, you might as well make full use of it.
Chongqing is larger than ________city in China.
________I’m concerned, we are going to take an exam in a month.