If Tom _____ my advice, he wouldn't have lost his job．
| A．should follow | B．had followed |
| C．followed | D．would follow |
As is reported, it is 100 years _____ Qinghua University was founded.
| A．when | B．before | C．after | D．since |
There is clear evidence _____ the most difficult feeling of all to interpret is bodily pain.
| A．what | B．if | C．how | D．that |
If you keep on your research, you'll _____ the result in time.
| A．look out | B．find out | C．carry out | D．pick out |
I called the airline to _____ my flight reservation a week ago.
| A．confirm | B．admit | C．appoint | D．obtain |
My friend, Tom, left New York in 1976 and _____ since then.
| A．hadn't been heard of |
| B．hasn’t been heard of |
| C．hasn't heard of |
| D．hadn't heard of |