1．Would you be kind enough＿me how to go to the office?
A. as to tell B. to tell C. telling D. tell
2．I don’t suppose you are serious，＿？
A. are you B. do I C. do you D. am I
3．I have read your article；to be frank，the editor justified＿your works.
A. to refuse B. ref using C. being ref used D. ref used
4. The conference＿a full week by the time it ends.
A. must have lasted B. would last
C. will have lasted D. has lasted
5．The reason why John left his home was＿he felt he’d brought shame to his parents.
A. because B. that C. as D. for