—Linda, I called you this morning, but nobody answered the phone. —I'm sorry. I a picnic with my family then.
There is someone at home because the lights are ________.A.out B.on C.not
Mary,please show ________ your picture.
I will take a photo ________ the house.A.of B.in C.for
If the camera ________ start,press the “camera” key.A.isn’t B.doesn’t C.don’t
This was how my first _______ job in radio began.