In the dream Peter saw himself ____ by a fierce wolf, and he woke suddenly with a start.
| A．chased | B．to be chased |
| C．chasing | D．having been chased |
You must _____ your studies and get ready for the college entrance examinations.
| A．concentrate on | B．centre in | C．devote to | D．devoted to |
. If plants from one habit were moved to the other type of habit, they changed their appearance and _____ the new environment.
A. adapted B adapted to C. suited to D. fit
. She feeds the baby _____ milk and grass _______her cattle.
| A．on; t o | B．to; on | C．with; to | D．on; with |
Between the two generations, it is often their different views of life and value _____ cause family conflicts.
| A．which | B．what | C．who | D．that |
. With their son ______ a foreign college now, the parents have some financial problems now and then.
| A．to attend | B．attending | C．attended | D．having attended |