She put back the book she had taken________mistake．
| A．in |
| B．up |
| C．to |
| D．by |
Tom could play the piano__________ the age of 7.
A. at B. in C. On
Thanks for __________ to see me.
A. come B. coming C. Comeing
—We failed in the singing competition. —_______. Better times are waiting for you.
| A．No way | B．Best wishes |
| C．Cheer up | D．Good job |
I still remember the college and the teachers ________ I visited in London years ago.
| A．what | B．who | C．that | D．which |
The people there have met lots of difficulties, but they haven't ________ hope.
| A．picked up | B．given up |
| C．looked for | D．waited for |