Dad, must we wait until the light becomes green? — Yes, I’m afraid we ______. That’s the traffic rule.

How do you spend the coming May Day holiday?— I haven’t decided. I wonderduring the holiday.

The hotel is almost finished, but it _____ needs one or two weeks to get ready for guests.

Our physics teacher told us that light ________ faster than sound.

She _______ this book for nearly three weeks.