一、 单项选择

　　1. Birds……when there isn't enough food for them.

　　A.starve

　　B.are starving

　　C.starved

　　D.starves  .

　　2. That old house near the lake isn't ……very much.

　　A.cost

　　B.worth

　　C.large

　　D.selling

　　3. I……why John is looking for a different job.

　　A.wonder

　　B.choose

　　C.feel

　　D.believe

　　4. Mrs?Brown asked her children not……in the house.

　　A.for yells

　　B.were yelling

　　C.to yell

　　D.but yelled

　　5.  There are several different ways to……a drum

　　A.shine

　　B.blow

　　C. hit

　　D.learn