补全对话，每空一词。
A: ____ time do you usually get up, Bob?
B. I usually get up ____ 6 o'clock.
A. So early? What do you do then?
B: I ____ my teeth and ____ a shower. Then I eat my breakfast.
A: ____ do you go to school?
B: At 8 o'clock.
吸收水和无机盐的主要部位是伸长区．
利用太空育种选育的太空椒果实更大，营养更丰富，这一变异不能遗传。（判断对错）
