---Why does the Lake smell terrible?
---Because large quantities of water .
A.have polluted | B.is being polluted |
C.has been polluted | D.have been polluted |
Lucy knew nothing about it ________ her sister told her.
A.because | B.until | C.if | D.since |
He walked ________ fast for us ________catch up with.
A.so, that | B.such, that | C.enough, to | D.too, to |
_______ my mother ________ my sister watches TV plays these days.
A.Either, nor | B.Both, and | C.Neither, or | D.Neither, nor |
The nurse doesn't feel well today, _________ she still works very hard.
A.but | B.and | C.or | D.when |
Tom has been in the factory _________he left school.
A.when | B.since | C.as soon as | D.whether |