Great efforts to increase grain production ____ if food shortage are to be avoided.A.could be made B.must be made C.might be made D.would be made为什么选B?这句话怎么翻译?

to make great efforts to build a strong Make great efforts to only be capable to do success make great efforts nake great efforts Efforts to make great efforts的同义词 make great efforts的同义词 To live a happy life should make great efforts to study and work. 英语翻译Make great efforts to force self to forget you,sorry,I cannot achieve effort的用法?是什么时候单数 什么时候复数?make great efforts to do 还是effrot? the teacher take great ——to make his lessons easy 为什么填steps 而不是efforts China has made great efforts to develop trade and friendship[ ]countries?between or among? I need to make great efforts ,Because I think of cherish! Efforts to pay Efforts to pursue better Great efforts must be ________ in order to improve your spoken English.A.made B.tried C.had D.put I will make great efforts to master a good command of advance Electronic Information Engineering.不要用有道翻译哦～ The wokers made great efforts to r( ) the people who were trapped underground.（根据首字母填空）