看图圈出正确的单词,完成句子。
1. She is a( girl; boy ). She is ( happy; sad ).
2. There are two ( man; men ). They are ( laughing; playing ).
3. ( She; He ) is a ( doctor; teacher ). He works at a ( school; hospital ).
4. These are (child; children). They are (old; young).
5. This is( a; an ) letter. We write a letter on ( a ) ( computer; paper).