The elephants often ________ water with ________ trunks .
A. drinking it’s B. drinking their C. drink their
I usually get up ______ seven o’clock in the morning.
A.at B. on C. of
下列每组单词中，有一个与所给单词不同类，将其序号填入题前括号内。
（1）panda A. tiger B. ruler C. zebra
（2）Monday A. day B. Tuesday C. Friday
（3）hand A. leg B. foot C. tape
（4）one A. three B. door C. seven
（5）doctor A. man B. teacher C. nurse
（6）white A. red B. brown C. skirt
（7）banana A. peach B. plane C. pear
（8）ant A. bee B. butterfly C. dog
（9）headache A. feel B. cough C. cold
（10）piano A. guitar B. blouse C. violin
Yang Liwei is ________．
A．an astronaut B．a pilot C．an engineer
We should ________ before we cross the street．
A．inn quickly B．play C．look left and right
Why not ________ out for a walk?
A．going B．to go C．go