Try ________ she might, Sue couldn"t get the door open. [ ]A. if B. whenC. s

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Try ________ she might, Sue couldn"t get the door open. [    ]
A. if
B. when
C. since
D. as

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举一反三

No matter how ________,  it is not necessarily lifeless.[     ]
A. a desert may be dry
B. dry a desert may be
C. may a desert be dry
D. dry may a desert be

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________ you may have, you should gather your courage to face the challenge.[ ]
A. However a serious problem
B. What a serious problem
C. However serious a problem
D. What serious a problem

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—Shall we have our picnic tomorrow?
—________ it doesn"t rain.[     ]
A. Until
B. While
C. Once
D. If

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My parents don"t mind what job I do ______ I am happy.[     ]
A. even though
B. as soon as
C. as long as
D. as though

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Peter was so excited ________ he received an invitation from his friend to visit Chongqing.[     ]
A. where
B. that
C. why
D. when

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