Scientists have to work hard to keep ________ with modern discoveries and developments.

_________ is your home from Sunshine Middle School– About ten minutes’ walk.

For immediate delivery, tell the company ________you are and they’ll send the goods to you.[ ]

Do Nelly and Eliza like reading books—Yes,________of them do.

Come on! Anybody here can learn to do a rock climb. There is _____ to it really.