Some problems ___ in the lecture by Mr.Smith are very popular in our school, such as the waste of electricity, water and food, etc...
#74324
A
referring
B
referred to
C
referring to
D
were referred
推荐题目
A pop star, _______drug abuse, may get an 18-month prison term. 
#67835
A
defended against
B
accused of
C
charged of
D
reminded of
It is known that a football team _____ 11 members .
#66767
A
is consisted of
B
is consisting of
C
consists in
D
consists of
The second runway of Hong Kong International Airport was officially ____ on May 26,1990.
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A
put into effect
B
made use of
C
taken notice of
D
put into use