48) I have excluded him because, while his accomplishments may contribute to the solution of moral problems, he has not been charged with the task of approaching any but the factual aspects of those problems.

[单选题]I never trusted him because I always thought of him as such a _____ charact

[单选题]I have to see the doctor because I ______ a lot lately.A． have been coughingB． had coughedC． coughedD． cough

[单选题]I have to see the doctor because I a lot lately. ( )A． have been coughingB． had coughedC． coughedD． cough

[单选题]I’ll work( )because I don’t want to let him down.A.hardB.hardestC.harderD.h

[单选题]5．I have _________him for ten years．A． been knowingB． been knownC． knownD． knowing

[单选题]We have no trust in him because he has never__________ the grandiose promis

[单选题]H．ave you seen Mr Green? Yes, I saw him at the school gate. He_ with the headmaster.A． is talkingB．was talkingC． talkedD．has talked

[单选题]I have heard both teachers and students______ well of him.A.to speakB.spoke

[单选题]I could easily [identify]him among the crowd because he was wearing long ha

[问答题]I have learned from him what I can't learn in class.