We must be strict ______ ourselves and ______ our work.

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　　A. in, in   B. with, with   C. with, in   D. in, with

We must be strict ______ ourselves and work ______.

A in;hard   B with;hardly     C in;hardly     D with;hard

We must be strict _________ our work and strict _________ ourselves.

A. with; in                        B. in; with          C. in; in              D. with; with

Our teacher told us that we must be strict         ourselves       our study.

            A. in with                      B. with with               C. in in              D. with in