——＿＿＿＿you ＿＿＿＿ the editor at the airport?
—— No, he ＿＿＿＿ away before my arrival.
| A．Have...met； has driven |
| B．Had...met； was driven |
| C．Did...meet； had been driven |
| D．Have...met； had driven |
The flu is believed ____by viruses that like to reproduce in the cells inside the human nose and throat.
| A．causing | B．being caused | C．to be caused | D．to have caused |
Seeing her father come back, _________.
| A．tears ran down her cheeks | B．Her tears ran out |
| C．she burst into tears | D．She burst into crying |
The old woman stood still with her eyes _________ the picture.
| A．fixing in | B．fixing on | C．fixed in | D．fixed upon |
I can’t remember _____ made the teacher give Mary the permission to leave the class earlier.
| A．that it was what | B．what it was that | C．what was it that | D．that was it what |
The thief was brought in, his hands ____________ behind his back.
| A．had been tied | B．tied | C．being tied | D．having tied |