一般现在时： 1. be 动词有：am/is/are 2. 行为动词用原形（主语第三人称 单数时，动词后加“s”或“es”. 助动词有：do / does; dont /doesnt,Grammar and speaking,Complete the sentences with the correct form of the words in brackets,The zebra doesnt eat ( not eat ) meat,1.Bears _(like) fish. 2. This bear _(not like) leaves. 3. Tigers _ (not eat) grass. 4. Monkeys _ (live) in Asia, Africa and America. 5.This monkey _(be) from China. 6. Giraffes _(eat) the leaves of the trees. 7. The zebra and elephant _(not liv
