--- Excuse me, where’s the supermarket?--- It is _____________ the post office and the library.
—What’s Jim doing?—He ______ a book.
—______ they ______ baseball?—No,they aren't.
—Where are Jeff and Jack?—They _______ in the river.
—Is Paul playing football now? —______.He's playing basketball.
Look!The boys are swimming in the _______.