-Look at these tracks. It be a wolf. -It needn't be. It be a fox. A. must ; could B. may ; might C. need ; must D. could ; need 【查看更多】

 

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—Look at these tracks. It __________ be a wolf.

—It needn't be. It ___________ be a fox.

A. must; could              B. may; might    

C. need; must               D. could; need

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—Look at these tracks. It __________ be a wolf.

—It needn't be. It        be a fox.

A. must ; could              B. may ; might    

C. need ; must               D. could ; need

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—Look at these tracks. It __________ be a wolf.

—It needn't be. It _______be a fox.

A. must ; could              B. may ; might    

C. need ; must               D. could ; need

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—Look at these tracks. It __________ be a wolf.

—It needn't be. It ________ be a fox.

A. must ; could　　　　　　 B. may ; might　　

C. need ; must　　　　　　　 D. could ; need

 

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—Look at these tracks. It __________ be a wolf.

—It needn't be. It        be a fox.

A. must ; could              B. may ; might    

C. need ; must               D. could ; need

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