Chemical processes       in the treatment of materials for clothes         the environment badly in some countries nowadays.
#98247
A
involve;damaging
B
involved;damaged
C
involving;damage
D
involved;damage
推荐题目
Lance Armstrong is believed ______drugs in the past competitive cycling races. 
#88614
A
to take
B
to be taking
C
to have taken
D
to be taken
I'm afraid that I can't make myself _______ because of my poor English.
#91275
A
understand
B
understanding
C
to understand
D
understood
____ to Anne's birthday party, Mr. Brown is now searching shop after shop for a nice present for her.
#89897
A
Having invited
B
Having been invited
C
Have been invited
D
Being invited