Seeing the teacher _______ the classroom, the boy pretended _______ the text.
#91774
A
walking in; to read
B
coming in; reading
C
entering; to be reading
D
entered for; to have read
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However, at times this balance in nature is disturbed, _______ a number of possibly unforeseen effects.
#92867
A
resulting from
B
resulting in
C
having resulted from
D
having resulted in
___________________, but he still couldn’t understand what I meant. 
#96328
A
Having been told many times
B
Having told many times
C
He had been told many times.
D
Although he had been told many times.
Unless________ to speak, you should remain silent at the meeting. 
#94058
A
invited
B
inviting
C
being invited
D
having invited