题目内容：

The picture below shows the temperature (℃) and the rainfall (mm) of Guangzhou. The temperature is shown as a curve (曲线图)．The rainfall is in column (柱形图)．

1.The rainfall in May is ______.

A. 230 mm    B. 300 mm    C. 350 mm    D. 400 mm

2.There is less rain in August than in ______.

A. June    B. July    C. May    D. September

3.It's colder in ______ than in any other month.

A. January    B. February    C. November    D. December

4.The hottest months are ______.

A. May and June    B. July and August    C. June and July    D. June and August

5.The coldest months are ______.

A. Aug. and Jun.    B. Jan. and Feb.    C. Sep. and Oct.    D. Nov. and Dec.