To understand the grammar of the sentence，you must break it______ into parts．
| A．down | B．up | C．off | D．out |
Look at this! It’s broken now! You __________ have been careful!
| A．could | B．must | C．would | D．should |
It took seven years __________ they finally got married.
| A．since | B．after | C．before | D．when |
— Where is the panda?
— It __________ by the doctor now.
| A．was being examined | B．is being examined |
| C．will be examined | D．has been examined |
Mary never does any reading in the evening, __________.
| A．so does John | B．John does too | C．John doesn’t too | D．nor does John |
I bought a vase of the Ming dynasty at such a low price at the Sunday market. It was really a nice __________.
| A．bargain | B．value | C．sale | D．prize |