.Everytime I_______a foreigner, I will seize the opportunity to practise my spoken English.
| A．believe in | B．turn around | C．come across | D．see off |
I didn’t know the new word in the text, so I had to the word in a dictionary.
| A．look out | B．consult | C．refer to | D．look up |
The project is so designed that once _______ nothing can be done to change it．
| A．starts | B．having started | C．started | D．starting |
There was a man crying over there．He _______ himself．
| A．could hurt | B．might hurt | C．must have hurt | D．might have hurt |
______ a good result，the professor decided to do the experiment once more．
| A．Not getting | B．Getting not | C．Not having got | D．Having not got |
Mr．Shaw can’t get promotion ________ his lack of qualifications．
| A．thanks to | B．for | C．because | D．because of |