------ Why does the lake smell terrible?
------ Because large quantities of water _________.
| A．have been polluted | B．has polluted |
| C．have polluted | D．has been polluted |
It is uncommon that she is a person ___________up late .
| A．accustomed to stay | B．accustomed to staying |
| C．used to stay | D．addicted to stay |
______ in papers, he didn’t notice my coming.
| A．Having absorbed | B．Absorbed | C．Absorbing | D．Being absorbed |
—How about this kind of fruit?
—Oh, this kind of fruit _______ lots of VitaminＣ and B.
A. contains B. includes C. remains D. holds
The government has decided to ______ a special fund to support those poor kids.
| A．set out | B．set off | C．set up | D．set about |
If it is quite ________ to you, I will visit you next Sunday.
| A．comfortable | B．fair | C．easy | D．convenient |