成人本科学位英语单项选择题每日一练(2020.05.24)

单项选择题
Human behavior is mostly a product of learning（）the behavior of animals depends mainly on instinct.
A.so
B.unless
C.if
D.while
单项选择题
We can（）the possibility of total loss from our calculations.
A.exclude
B.prevent
C.excuse
D.discard
单项选择题
A benefit performance is a performance for which a charitable organization has bought out at a discounted price and（）funds by selling tickets at a full price.
A.furnishes
B.raises
C.accumulates
D.contributes
单项选择题
Mickey: You look a little pale. Are you OK? Nancy:（）I feel terrible.
A.To speak out
B.To begin with
C.To tell you the truth
D.To sum up
单项选择题
they are（）with envy and jealousy at what has happened to their sister.
A.consumed
B.overjoyed
C.hideous
D.grief-stricken