blind A not able to hear B not able to see C not able to spe

blind A not able to hear B not able to see C not able to spe not able to see=b_____________? 为什么是NOT BEING ABLE TO而不是NOT ABLE TO? It be true A.must not B.is not able to C.can not what's "not able to see well"'means?help me. 英语翻译I am very disappointed not to be able to go to see a fil Do not install B you to be able to die a sea bird,being able to swim and walk and being not able to your application was not able to find a license file may not able to do sth 还是 may not be able to do sth? 请问“will not be able to see a safe distance in front of you. 根据英文释义写出单词d____:not able to hear welld____:unable to seec___