These are ________.

A．socks

B．dress

C．sweater

写出下列单词的复数形式。
1. bus___________ 2. watch___________
3. potato___________    4. zoo___________
5. child___________     6. man___________
7. box___________ 8. woman___________
9. teacher___________   10. boy___________
11. foot___________     12. sheep___________

Look at those ___over there.  (   )

A．ducks

B．duck

C．three ducks

心明眼亮。根据图示，写出单词。
In winter. I want to play outdoors. I want wear my ________, ________, _______, ________ and _______.

There are some ________ in the zoo. (  )

A．tiger

B．tigers