Marry, I think you have left your umbrella in the restaurant.–Oh, so I have. Igo and fetch it at once.

The two girls are so alike that strangers find ________ difficult to tell one from the other.[ ]

Linda, how is your classmate, Lisa —She never says a bad word ________ her friends. She’s the kindest girl I’ve ever met.

Research indicates that _____ 75% of kids with learning disabilities have such difficulties as making and keeping friends [ ]

On April Fool’s Day, people usually play tricks ______ each other.