Can you imagine what problem may ________ when human beings are cloned?
| A．raise | B．cause | C．arise | D．lead |
Tom was about to close the window ___ his attention was caught by a bird.
| A．when | B．if | C．and | D．till |
Well, towards nightfall, I found myself ___ out to sea by a strong wind.
| A．being carried | B．carried | C．to carry | D．having carried |
He couldn’t have Yong Hui ___ away with telling people lies!
| A．to get | B．get | C．getting | D．got |
---- How about your journey to Mount Emei?
---- Everything was wonderful except that our car ___ twice on the way.
| A．slowed down | B．broke down | C．got down | D．put down |
Would you please ___ the paper for me and see if there are any obvious mistakes?
| A．look around | B．look into | C．look up | D．look through |