It is desirable that he ________.A.gives up trying B.give up tryingC.would give up trying D.is going to give up trying
问题描述：
It is desirable that he ________.
A.gives up trying B.give up trying
C.would give up trying D.is going to give up trying
答
表示建议、命令、要求等这一类的动词后面从句中，或者相应的主语从句，要用虚拟语气。这里是要求的意思，
desire that sb (should) do sth. or It's desirable that sb (should)do sth.
答
B
It is desirable that （should） +动词原形的结构，表示理所当然
答
B.give up trying
desire决定用虚拟语气(should+动词原形),desirable也是如此.