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问题 单项选择题

AaBb的个体，减数分裂后，产生的配子组合是（）。

A、Aa；AA；aa；Bb；BB；bb

B、A；a；B；b

C、AB；Ab；aB；ab

D、Aa；Ab；aB；Bb

答案

参考答案：C

填空题

根据句意及首字母或者汉语提示，补全单词。

1. The old man is a great a            of children novels. Children like reading his books.

2. Look! This new book b_    ___ to your sister.  There is her name on it.

3. All of us want to have a p            in the forest this Sunday.

4. Some leaves start             (掉下) on the ground when autumn comes every year.

5. Our teachers ___ _    (或许)go to movies by bus.
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选择题

Have you seen the film “Titanic” ________ leading actor is world-famous ?

A．its

B．it’s

C．whose

D．which
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