______ by a greater demand of vegetables, farmers have built more green houses.
| A．Driven | B．Being driven | C．To drive | D．Having driven |
Although I had read the book assigned by the professor several
times, it didn’t make any
to me.
| A．meaning | B．importance | C．sense | D．significance |
concern about food safety seems to be subject that is being discussed all over the world.
| A．The; the | B．A; / | C．The; a | D．/; the |
I like this house with a beautiful garden in front, but I don’t have enough money to buy______.
| A．one | B．it | C．this | D．that |
Thank you for your help and I hope I can do something for you_____.
| A．in return | B．in turn | C．in reply | D．by turns |
---Have we ________ food?.
--- Yes, ______. We’d better buy some.
| A．run out of; we have run it out | B．run out of; our food has run out |
| C．run out; our food has been run out | D．run out; our food has run out |