The parallax measurement is used in survey studies to tell how far away ___.
A.is an object distant
B.an object is distant
C.distant is an object
D.a distant object is
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All things ___, the planned trip will have to be called off.
A.considered
B.be considered
C.considering
D.having considered
A few animals sometimes fool their enemies___ to be dead.
A.appear
B.to appear
C.by appearing
D.to be appearing
Had he worked harder, he ___ the exams.
A.must have got through
B.would have got through
C.would get through
D.could get through
The two most important ___ in making a cake are flour and sugar.
A.elements
B.components
C.ingredients
D.constitutions
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