ⅰ.用所给词的正确形式填空 1．the only explanation (explain) for his behavior is that he is mad. 2．he bought me a valuable (value) diamond ring as a birthday present. 3．the boring lecture made me feel so bored (bore)． 4．you are all forbidden (forbid) to leave. 5．he was sent to his room as a punishment (punish)． 6．anyone interested (interest) in joining the club should contact us at the address below. 7．they behaved(behavior) very badly towards their guests. 8．you'd better submit your claim within a reasonable (reason) time. 9．w
