—____________ 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 |
With the guide _______ the way, we finally got to the village which we were looking for
| A．led | B．leading | C．to lead | D．had led |
Students are encouraged to _________ the design competition for robots at the university.
| A．take part | B．operate | C．join to | D．participate in |
The plan has to be _______ to meet the real situation.
| A．adjusted | B．adapted | C．produced | D．refounded |
I ______ my university professor in the supermarket near my house, which was out of my expectation.
| A．came out | B．came across | C．came about | D．came along |
To qualify yourself for this kind of new job, I recommend that you ________ some online courses.
| A．to take | B．taking | C．take | D．would take |