He was just falling asleep________ there was a loud knock at the door.
A.when B.while C.as D.and
Mary was dancing while Mike ________ the piano.
A.played B.was playing C.were playing D.plays
The old man looked for the dog________
A.anywhere B.nowhere C.somewhere D.everywhere
________ TV at that time?
A.Did you watch B.Have you watched
C.Were you watching D.Are you watching
Mr.Black will agree ________ there with me.
A.to go B.went C.will go D.going
They argued________ each other ________ the math problem yesterday.
A.about， with B.with no
C.to at D.with about
