The students ______ their homework every day.Now they _______ their homework.
| A．do, do |
| B．does, doing |
| C．doing, are doing |
| D．do, are doing |
Is it a pictureyour school?
| A．of | B．to | C．and | D．with |
I wanta map of China.
| A．buy | B．is buying | C．to buy | D．am buying |
They often help.
| A．I | B．mine | C．my | D．me |
Classes beginseven fifty-five.
| A．in | B．on | C．at | D．for |
指出每组单词中与其他三个不同一类的单词。
（1）A. river B. eat C. worry D. stay
（2）A. pear B. apple C. flower D. banana
（3）A. bread B. milk C. table D. egg
（4）A. one B. two C. first D. four
（5）A. tell B. say C. cook D. father
（6）A. third B. ninth C. eighth D. ten