Chemical processes _______in the treatment of materials for clothes _______the environment badly in some countries nowadays.
A.involve;damaging | B.involved;damaged |
C.involving;damage | D.involved;damage |
All the photographs in this book,__________ stated otherwise, date from the 1950s.
A.unless | B.until |
C.once | D.if |
It is believed that if an event is __________,it will surely __________ the readers.
A.astonished; astonish | B.astonishing; be astonished |
C.astonishing; astonish | D.astonished; be astonished |
Readers were pleased __________ that a scientist could write about his research in a way __________ ordinary people could understand.
A.to find; that | B.finding; as |
C.to find; as | D.finding; that |
-Coach, can I continue with the training?
-Sorry, you can't __________ you haven't recovered from the knee injury.
A.until | B.before |
C.as | D.unless |
You can't be careful enough to drive on the __________ road in __________ weather.
A.freezing; frozen | B.freezing; freezing |
C.frozen; freezing | D.frozen; frozen |