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 |