.
My hard work _________．My cartoon came out in the form of a real book, beautifully printed．
| A．paid off | B．paid for | C．paid back | D．paid out |
Please say "Hi" to Bob ______ me.
| A．to | B．for | C．about | D．from |
After we walked ______ the forest, and ______ a river, we arrived at that small village.
| A．across; across | B．through; across |
| C．across; through | D．through; through |
We were about to leave the classroom _____ it began to rain.
| A．while | B．when | C．as | D．before |
Three students in ten will go and _____ to stay in the classroom.
| A．the rest are | B．the rest is | C．the other are | D．the other is |
The beef is too expensive. I won’t buy it _____.
| A．at that price | B．at a that price |
| C．on that price | D．in that price |