There is a real possibility that these animals could be frightened， a sudden loud noise.
| A．being there | B．there having been |
| C．there was | D．should there be |
My toothache is killing me．I _____ it _____ away．But now it’s getting worse and worse．
| A．think; is going | B．thought; was going |
| C．have thought; is going | D．had thought; had gone |
---The exam starts at 9:00 tomorrow morning．
---___________ I fail to arrive there on time?
| A．What if | B．As if | C．Only if | D．Even if |
_____ on May Day, the Shanghai Expo has attracted tens of thousands of visitors around the world every day．
| A．Having opened | B．Opened |
| C．Opening | D．To open |
With the moonlight keeping them ________, the tourists climbed over the mountain without a guide．
| A．approach | B．silence | C．secret | D．company |
Recently I was frustrated that my essay was rejected my a newspaper．________, I had my wallet picked on the bus on the way home．
| A．To be honest | B．To make matters worse |
| C．To tell you the truth | D．Believe it or not |