“一树结果，酸甜各异”这句谚语说明了生物界普遍存在（　　）

A．遗传现象

B．变异现象

C．繁殖现象

D．生长现象

根据句意及首字母或汉语提示完成单词。

小题1:Last week she borrowed my book and didn’t r__________ it.

小题2:It’s i___________ to finish the project in such short time.

小题3:I’m seeing Sue this afternoon.Do you want me to bring a m___________?

小题4:My parents are not at home, so I have to look after m_____________.

小题5:Don’t c____________ others’ homework. It’s a bad habit.

小题6:He doesn’t like playing football. His brother doesn’t like it e___________.

小题7:In the future, there will be more robots _____________ (到处).

小题8:It’s my mother’s birthday tomorrow.I will buy some ___________(花) for her.

小题9:The children feel __________(幸运的) to have the volunteer teachers there.

小题10:The students didn’t stop talking ___________(直到) the teacher came in.