Suddenly they noticed a house with two big trees _______ in front of it.
#91236
A
to stand
B
standing
C
standed
D
stands
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With so much work _________, they feel worried all the time.
#91106
A
doing
B
to do
C
done
D
having done
_______ on earth do you suppose_______ this?
#91155
A
What; could do
B
What; could have done
C
Who; do
D
Who; could have done
__________ , some students tend to develop a range of unhealthy habits .
#91470
A
Parents don’t watch over them
B
Not having watched over
C
With no parents to watch over them
D
Parents watched over