101.______ steel is stronger than iron, men are able to make steel pipes with larger diameters.
a. While b. If c. Unless d. As
102.Mr. Chen said that he would be punctual for the appointment, ______ he were late?
a. but what if b. how about c. so what d. and what about
103.Mrs. Lee will move into her new house next Monday, ______ it will be completely furnished.
a. by which time b. by the time c. by that time d. by some time
104.I have little doubt about his competence; ______ he is well-qualified for the job.
a. although b. because c. moreover d. yet
105.The quantum theory states ______, such as light, is given off and absorbed in tiny definite units called quanta or protons.
a. energy that b. that it is energy c. it is energy d. that energy
106.______ to space travelers is high acceleration or deceleration forces.
a. Danger can beb. They can be dangerous
c. What can be dangerousd. While danger
107.______ these questions may sound academic, answers to them could have profound economic and political significance.
a. Since b. If c. While d. Lest
108.A body weighs ______ from the surface of the Earth.
a. less the farther it getsb. the farther it gets
c. less than it gets farther d. less than it, the farther it gets
109.______ it is you’ve found, you must give it back to the person it belongs to.
a. That b. Because c. Whatever d. However
110.______ is often the case with a new idea much preliminary activity and optimistic discussion produce no concrete proposals.
a. Thatb. It c. Which d. As
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