The young lady was careful _________.
| A．not repeating her mistake | B．not repeated her mistake |
| C．to not repeat her mistake | D．never to repeat her mistake |
----Would you please lend me the dictionary?
---- ____.
| A．You are welcome | B．Not at all | C．Thank you | D．Here you are |
Who is it up ____ decide whether to go or not?
| A．to to | B．to | C．for to | D．to for |
Wang Mei is one of many Chinese teenagers _____ “on the go”
| A．who lives life | B．who live life | C．that lives living | D．that live living |
The two boys fought and fought until one ______.
| A．gave up | B．gave in | C．gave | D．gave off |
He will _____ our class to sing at the school singing contest.
| A．take place of | B．stand for | C．represent | D．representative of |