She kept _________ hard at her physics and finally caught up with us.
If you want to work out the problem of stress successfully, you need to find out the _________ first.
— Were you chosen to be the hosts of the party, Denny?— Oh, what a terrible experience! _________ Sarah _________ I was, because we were much too nervous.
—Your English is very good. —_________
—Mom, this is my friend, Bob. — ___________
Here is ________ my family.