_________basic first-aid techniques will help you respond quickly to emergencies.
| A．Known | B．Having known | C．Knowing | D．Being known |
58. Sometimes, the entrance tickets are _______ free of charge from the university.
| A．available | B．valuable | C．imaginable | D．Comfortable |
57. I have never dreamed of _______ such a good hotel in this town.
| A．there was | B．there is | C．there being | D．there have |
56. _______ for our teachers, we’d never have been able to enter this university.
| A．Had it not been | B．Had it not |
| C．If it was not | D．If he had not been |
15. Some of the doctors are paid almost ______ as the nurses.
| A．twice as much | B．much as twice | C．as much twice | D．as twice much |
14. ______ I’m well again, I can go on with my work.
| A．Even if | B．As though | C．Ever after | D．Now that |