( ) (3) 当你想问别人这是什么的时候, 应说:A. What are you doing ? B. What are you work ? C. What is this?
We were ______. So we bought a watermelon.A. thirsty B. dirty
There ______ an old man.A. were B. was
Yesterday I _______ Grandma.A. phone B. phoned
Come _____ , please!A. in B. of
It ______ warm yesterday.A. is B. was