你向 Mr Black介绍Mary时,说A. Hello, Mr Black. I’m Mary. B. Hello, Mr Black. This is Mary. C. Nice to meet you, Mary.
_____ he ______ tennis after classes yesterday? A. Did; played B. Did; play C. Does; play
What _____ you _____ last weekend? A. did; do B. did; did C. do; does
It is time _____ home. A. go B. to go C. to go to
He _____ his homework on Sunday morning. A. do B. did C. to do
I _____ my room last night. A. clean B. cleans C. cleaned