I found________difficult for them to get there on time．
A．this
B．it
C．that
D．one
Your English book is on the floor．Please________．
A．pick it up
B．look for it
C．pick up it
D．look it up
Susan used to________to school，but she is used to________to school now．
A．walk；take a bus
B．walk；riding a bike
C．walk；ride a bike
D．walked；took a bus
—What do you think of his talk on the Information Technology?
—Oh，very good，It’s worth________．
A．listening to
B．to listen to
C．listening
D．hearing
(2013山东莱芜)—It’s too hot today．
—Yes．Why don’t you________your jacket?
A．put on
B．put up
C．take off
D take after
我不知道是谁在敲门。
I didn’t know who was________ ________ ________ ________．
