A bit more effort, I think, ____ the problem could be settled.
A．a(chǎn)ndB．soC．orD．but
A

試題分析：考查連詞。本題考查祈使句 + and + 陳述句結(jié)構(gòu)，故用連詞and。句意：我想，再努力一點(diǎn)，問(wèn)題可能就能解決。故A正確。
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