After the long walk , my legs _________ and I couldn’t go any further.
| A．gave up | B．gave off | C．gave in | D．gave out |
Their classroom is _____ than ours, that is to say, their classroom is as small as ours.
| A．much bigger | B．much smaller | C．no bigger | D．less small |
It was _____ it raised so many difficult questions _____ the book took a long time to come out.
| A．that; that | B．since; which | C．because; that | D．because; which |
It is sometimes of great _____ to explain to the patient what is happening.
| A．technique | B．signal | C．importance | D．freedom |
The failure of his plan made him _____ that he had made a great mistake in working out the plan.
| A．be aware | B．aware of | C．aware | D．be aware of |
—I’d like to book a single room in your hotel.
—OK. They’re US$100 each, but a room with a sea view will cost _____ $10.
| A．the other | B．another | C．other | D．others |