Isn't it time that children         to bed since it is too late?

Try not to cough more than you can _______ since it may cause problems to your lungs. 

--- Who _______________ the question? --- The girl who was standing beside me. We were ____________ in the question.

What ________ will it make whether Mr. Black tells us the story early or not?

Anne felt nervous ____ she gave a speech in front of so many students.