Heat does not travel by convection in a solid, because the solid does not move, ______.
A. so does a liquid
B. so a liquid does
C. so is a liquid
D. as does a liquid
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He explained everything over again ______ anyone should misunderstand her.
A. since
B. when
C. lest
D. as if
______ convincing an argument is, it needs support of evidence.
A. Whatever
B. However
C. Although
D. Even if
Earthworms occur ______ adequate moisture and food and the necessary soil conditions are found.
A. and
B. however
C. but
D. wherever
______ we gave him anything to eat, he would save it up for his little brother.
A. When
B. That
C. Whenever
D. What