You have to be a fairly good speaker to ______ listeners’ interest for over an hour.
| A．hold | B．make | C．improve | D．receive |
12．We have to study for a bright future, so we have to lose some sleep_________we're worn out.
| A．in case | B．as though | C．as long as | D．even though |
11．Nowadays electrical energy_________from the sun has become the most widely used energy.
| A．comes | B．coming | C．to come | D．Came |
10．The country has changed so greatly over the past three decades that it has grown_________my wildest imagination.
| A．in | B．of | C．without | D．Beyond |
9．Creative people are in a better position to succeed in both university and society than_________who may just be good test-takers.
| A．that | B．those | C．one | D．They |
8．－This is a gas station! And you_________know smoking is forbidden here.
－Oh, terribly sorry.
| A．will | B．can | C．may | D．Must |