_____ how to express the idea in English, he turned to the dictionary.
#98351
A
Does not know
B
Not knowing
C
Knowing not
D
Not to know
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People are talking about the new traffic regulations _______in two months.
#91063
A
to be put on
B
to put on
C
being put on
D
put on
 At present, English is the main subject _____ here. 
#98252
A
to be taught
B
being taught
C
teaching
D
to be teaching