.Mostbirdsfinditsafetosleepint

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.Most birds find it safe to sleep in the trees, but __________ they have eggs or young chicks, they don’t use a nest.

A．why	B．how
C．unless	D．where

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If one wants to succeed in this society, it is very important and necessary that one ______his ______ and avoid one’s weaknesses.

A．develop; strengths;	B．develops; strengths;
C．develop; strength;	D．develops; strength;

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If trees continue _______ at the present rate, it won’t be _______there is no trees for shade.

A．to cut down; long before

B．being cut down; before long

C．to be cut down; long before

D．cutting down; before long

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Remember never to lie to others; if you did, you would have to ______ more lies to cover the lies you have______ .

A．discover; told	B．make up.; told
C．invent; said	D．find out; spoken

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He finally gave in to and opened the letter addressed to his wife.

A．worry

B．feeling

C．curiosity

D．hope

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Any student cheats in the exam will never it.

A．who; get along with	B．that; get back with
C．who; get away with	D．which; get in with

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