He promised ______his old friend during his stay in Tianjin.
— I didn’t see you at the meeting yesterday. Why? — I _____ for an important telephone call at that moment.
—Don’t forget to come to our school meeting tomorrow. — I won’t. I _____ just now.
—He doesn’t speak English as _____ as Chinese. —Maybe, perhaps it’s just because Chinese is his native language..
_____ of our classmates are good at basketball.
—After P.E. I often feel thirsty. —Why not buy some _____ to drink?