________ their teacher coming, the pupils pretended to be reading aloud.
| A．To see | B．Seeing |
| C．Having seen | D．Seen |
more and more forests destroyed, some animals are facing the danger of dying out.
A. AsB ByC. ForD. With
It looks as if they were going to us 3,000 dollars for the concert hall.
| A．want | B．charge | C．demand | D．cost |
I wrote to my parents to ask for some money, because my money began to.
| A．give away | B．give in | C．give off | D．give out |
Father ____ that we four brothers try our best to help our uncle ___ everything he had done for us.
| A．suggested; in return for | B．hoped; in exchange for |
| C．wished; in terms of | D．supposed; in turn |
We need ____ refrigerator, so we are going to buy ____ from the department store this afternoon.
| A．a; it | B．the; one | C．a; one | D．the; the one |