54. Extensive tests have been on the patient.
| A．carried on | B．carried out | C．carried off | D．carried away |
–I am so sorry to have come late for the meeting.
-It’s not your fault. With rush-hour traffic and heavy rain, it is no wonder you were late.
| A．a; a | B．the; the | C．/; / | D．/; a |
I ______ sooner but I didn’t know that they were waiting for me.
| A．had come | B．was coming | C．would come | D．would have come |
---I need to advertise for a roommate for next term.
---? Mary is interested.
| A． | Why bother | B． | Why not | C． | So what | D． | What for |
Modern science has given clear evidence ______ smoking can lead to many diseases.
| A．what | B．which | C．that | D．where |
into English, the sentence was found to have an entirely different word order.
| A． | Translating | B． | Translated |
| C． | To translate | D． | Having translated |