A. how B. what C. why D. where

【题目】You may rely on _______ he'll come to help you.
A.that
B.it that
C.whether
D.it if

A. prevent B. care

C. defend D. protect

A. ambition B. preference

C. admission D. ability

A. as B. to

C. than D. while

A. for; to B. to; with

C. to; to D. with; to

A. rain twice as much B. twice as much rain

C. as twice much rain D. twice rain as much

A. even if B. as though

C. unless D. as far as

【题目】The rising crime is a major ________ of society.
A.responsibility
B.condition
C.cause
D.concern

【题目】While studying, fix your mind on what is really important, or you will _______ remembering nothing.
A.end up
B.take up
C.lead to
D.stick to