He was thinking about the problem when an apple fell off the tree, _______ him right on the head.
#96240
A
hit
B
having hit
C
hitting
D
and hitting
推荐题目
.What is the way Tom thought of _______enough money to buy it ?
#97008
A
to get
B
having got
C
getting
D
being getting
I’m sorry        written you a letter at the tine.
#96374
A
o have not
B
o not have
C
ot to have
D
ot having
Please tell me the problems ________ at yesterday’s meeting quickly. The manager is calling me!
#90889
A
being discussed
B
to be discussed
C
discussed
D
having discussed
With the boy _____ the way, we had no trouble _____ the way to lead to Zhongshan Park. 
#96705
A
leading; finding
B
to lead; found
C
led; finding
D
leading; to find