根据短文内容，从短文后所给的选项中选出能填入空白处的最佳选项，选项中有两项为多余选项，并将所选答案涂到答题卡的相应位置上。

This is David, an English boy. He is 12 years old. He loves hamburgers. He has one hamburger for breakfast, two hamburgers and two ice creams for lunch. 【小题1】 Three hamburgers and a coke (可乐).

Some scientists say, “ 【小题2】 But if you eat them too much, it is not good for health.” If we have food like hamburgers too much, what can we get?

Scientists have an experiment (实验) on rats (老鼠) to find the answer.

Here are three groups (组) of rats: Group One have fruit and vegetables. 【小题3】 But they can only have hamburgers for one hour every day. Group Three have hamburgers and vegetables, too. 【小题4】 The rats in Group Three like hamburgers very much and always want them. After the experiment, they are the fattest.

Can it be the same as people? Some scientists say “Yes”. It is OK to love food like hamburgers. But having six hamburgers a day like David makes you fat. You don’t want to be too fat, right? Ice—cream is nice and cool. It’s OK to have one ice-cream after dinner. But it’s not OK to have five ice-creams after dinner. 【小题5】

A．Where does he enjoy sports?

B．Because we don’t want to be the fattest “rats”.

C．Hamburgers, ice-cream and coke are OK.

D．Group Two have some vegetables and hamburgers.

E．For dinner, what does he have?

F．Rats eat fruit and vegetables.

G．But rats in this group can have hamburgers all day.