早教吧 育儿知识 作业答案 考试题库 百科 知识分享

beunableto应该怎么用?Ifnotforbees,whichareresponsibleforpollinatingthevastmajorityofEarth'sflowers,manyplantswereunabletoproducefruitsorseeds.这是一道SAT的语法题,语法错误在manyplants后的wereunableto,请

题目详情
be unable to应该怎么用?
If not for bees,which are responsible for pollinating the vast majority of Earth's flowers,many plants were unable to produce fruits or seeds.
这是一道SAT的语法题,语法错误在many plants后的were unable to,请问应该怎么改?是虚拟语气吗?
▼优质解答
答案和解析
改成 will be unable to