用单词的适当形式填空。
（1）          （Lisa）scissors              （be）on the table.
（2）We don’t have any               （meat）, we need some .
（3）The           （three）month is March .
（4）Look, the boys              （swim）in the pool, and they             （talk）loudly （大声）there.
（5）Peter doesn’t              （have）an envelope .
（6） The                 （left）are yellow in fall .