Nancy writes books ______ children ______ 14-15. [ ]

He has poor eyesight _____ too much computer work at night.[ ]

Andy, you were the only person that was late for the meeting, why? —Sorry, sir. But I really had a __________ time finding the meeting hall.

The current European debt crisis is affecting many countries in the world.—Will it be at least several years __________ everything returns to normal?

She’s come up with some different ways to solve the math problem.—What a clever girl!