Teenagers should ________ to take care of themselves from a young age.
| A．educate | B．be educating |
| C．have educated | D．be educated |
— Do you know Mozart?
— Of course. He wrote _____ of beautiful pieces of music.
| A．hundred | B．a hundred | C．hundreds | D．six hundred |
— I went to your house yesterday afternoon, but you were not in.
— Sorry. I _______ basketball with my classmates.
| A．am playing | B．was playing | C．played | D．have played |
—________you _____your homework yet?
—Yes, I ___it ten minutes ago.
| A．Did, do, finished | B．Have, done, finished |
| C．Have, done, have finished | D．will, do, finish |
Zhang Yu is a ________ girl from Sichuan.
| A．twelve years old | B．twelve-year old |
| C．twelve–years-old | D．twelve-year-old |
—_________riding our bikes to the park?
—Good idea.
| A．How about | B．Why not | C．Would we like | D．Let’s |