散文集《绿天》的作者是（）
A.冰心
B.庐隐
C.苏雪林
D.萧红
参考答案：C
单项选择.
The ______ letter in the word "develop" is "v".
The harder you work, the______likely you are to qualify as a doctor by the time you graduate.
A．much B．more C．fewer D．less
