一、单项选择题，从下列每题所给的选项中，选择一个最佳的答案。（共计30分）
( )1. I really don’t know _______ .
A. what to do it B. how shall I do it C. how to do it D. what shall I do it
( )2. We must ____ ourselves and ____ our work .
A. strict in , with B. be strict in , with C. be strict with , in D. strict with , in
( ) 3.—Was Henry late for the concert yesterday?
---No . He got there even ten minutes ______ than us two.
A. earlier B. earliest C. later D. latest
( )4. People found him on the road ____ a cold winter morning .
A. in B. at C. on D. for
