With so much work _________, they feel worried all the time.
#91106
A
doing
B
to do
C
done
D
having done
推荐题目
With the boy_______ the way, we had no difficulty _______the way to the West Lake. 
#91306
A
to lead; found
B
leading; finding
C
led; finding
D
leading; found
The boys and girls were happily making a snowman, _______ with cold.
#91230
A
their faces red
B
their faces were red
C
their faces turned red.
D
their faces to be red