His eyes ________ on the PPT, Lee listened to the teacher ________.
| A．fixed; attentively |
| B．have been fixed; carefully |
| C．fixing; interestingly |
| D．fixed; purposefully |
To avoid on how to use the word, you’d better refer to a dictionary.
| A．to get confused | B．getting confused |
| C．to get confusing | D．getting confusing |
There is a shortage of teachers in Western China, and it will fall on the 80s and 90s generations to this responsibility.
| A．take on | B．step up | C．make up | D．apply for |
Only when he told me________what trouble he was in.
| A．did I realize | B．I realized | C．do I realize | D．I realize |
There are a number of methods to provide relief from your toothache, which can’t cure the problem.
| A．permanent | B．temporary | C．contemporary | D．consequent |
____ I'm mistaken, I've seen that tall man at a party before.
| A．If | B．As | C．Unless | D．When |