Question

【题目】It is believed that a new kind of drug _____ by the scientists and they are hopeful that they will succeed in a few months．

A．has been developed B．is being developed

C．is developing D．has developed

Answer 1

【答案】B

【解析】

试题分析：名词drug与develope之间是被动关系，且根据句子的语境发现是现在进行时，所以选择B项。句意：据信当今被科学家研究的新类型药品将会起到很大的帮助作用，并且在数个月之内成功。