we were quite tired, we still went on working.A.Because; / B.Although; but C.Although; /
—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 _______.