问题
选择题
_______ on your study, and you will make greater progress．
A．Concentrating
B．If you concentrate
C．Concentrate
D．To concentrate
答案
答案：C
考查动词形式。本题考查祈使句 + and + 陈述句结构，故选C。
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_______ on your study, and you will make greater progress．
A．Concentrating
B．If you concentrate
C．Concentrate
D．To concentrate
答案：C
考查动词形式。本题考查祈使句 + and + 陈述句结构，故选C。