What’s your mother like — __________________

The little boy was last seen __________ football by the river.

By the time he realizes he _____ into a trap, it’ll be too late for him to do anything about it. [ ]

I think it’s impossible for us to work out the plan in just two days. It’s too difficult.—You’re right. We can’t be _______ careful while working on it.

want to ______ your goals and dreams, you have to be willing to pay the price.