I have no idea what _____ while I was asleep

How much is _______ for a schoolbag? —Experts say students should carry_______ more than 10 or 15 percent of their body weight.

You must be careful not to borrow more money than you can________to repay.[ ]

Tim is asked by his parents________ once a week.—Yeah.They are very strict with him.

My watch is cheaper than .