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
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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
I have little doubt about his competence; ______ he is well-qualified for the job.
A. although
B. because
C. moreover
D. yet
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
______ to space travelers is high acceleration or deceleration forces.
A. Danger can be
B. They can be dangerous
C. What can be dangerous
D. While danger