The Bunsen Burner is so named because it is thought ___________ by Robert Bunsen.
| A．to be invented | B．having been invented |
| C．invented | D．to have been invented |
Appointed as ____chairman to China,Mr．Xi was determined to serve his country____ heart and soul．
| A．an，the | B．the；a |
| C．the；the | D．/；/ |
The school had promised to keep parents fully _____ about the conditions of their children at school．
| A．inform | B．informing |
| C．informed | D．being informed |
The manager should take_______ action if safety standards are not being met．
| A．awkward | B．average |
| C．appropriate | D．automatic |
—Sir, you are fined for speeding. Please sign here.
—Fined？Speeding？______.
| A．Are you all right？ | B．You can't be serious！ |
| C．I'm a foreigner | D．It doesn't matter |
______ in the queue for half an hour, the old man suddenly realized he had left the check in the car.
| A．Waiting | B．To wait |
| C．Having waited | D．To have waited |