题目

用所给单词的适当形式填空。【1】Which is _________ (heavy), the tiger or the elephant?【2】Which season do you like _________ (good) of the four seasons?【3】Can you please give me _________ (some) coffee?【4】Tom is a friend of _________ (Jack).【5】Mrs. Wang teaches _________ (we) Chinese.【6】My mother likes _________ (go) shopping.【7】What ________ (do) Li Lei often do on the weekend?【8】It is ________ (wind) today, so I want to stay at home.【9】Listen, who is ________ (sing) in the classroom?【10】______ (not) be late next time.15．对“生物圈是一个统一的整体”观点的理解，错误的是（　　）A．生态系统中生物之间相互联系B．每种生物都能在不同生态系统中存在C．各类生态系统共用阳光、空气等D．生态系统多样并且相互联系