Most of us think of games as child* s play, but games _____ children' s thinking and develop skills like problem solving and communication．
| A．sharpen | B．seize | C．adore | D．apply |
—Jack, _____ you behave yourself? You're no longer a kid．
—Sorry, Daddy．It won't happen again．
| A．mustn't | B．can't | C．should | D．would |
Can you tell me ___ which you based your calculation __ detail ?
| A．on; in | B．on; at | C．about ;in | D．about; for |
After looking at many new cars, I found ______ which I would accept just as suitable．
| A．it | B．this | C．that | D．one |
I need to get another dictionary, because ______ cover is dirty and ______ page is missing．
| A．a; a | B．a; the | C．the; a | D．the ; the |
- The little girl is a talented pianist.
- Everyone in her family is musical. __________.
| A．It’s a nightmare. | B．I really appreciate it. |
| C．It’s just in their blood. | D．That’s not the point. |