Smile at the world ______ the world will smile back to you
A. and
B. while
C. but
D. so
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Miss Li felt tired, _____ she took a nap .
A. and
B. while
C. but
D. so
You can't always decide what to do next for children ,_______ you are parents.
A. even if
B. as if
C. unless
D. because
The story is _______ interesting ______ instructive (有教育意义的)
A. either;or
B. neither ;nor
C. not only ;but also
D. not;but
I have only two tickets for the film Kongfu,_____ you _____ Jack can go with me .
A. either;or
B. neither;nor
C. not omly;but also
D. both;and