The most important thing about cotton in history is _____ part that it played in ____ Industrial Revolution．
| A．/; / | B．the; / | C．the; the | D．a; the |
You don’t have to know the name of the author to find a book. You _____ find the book by the title.
| A．must | B．need | C．can | D．would |
— When did you last hear ______ Jay?
— He phoned me this morning, and we agreed ______ a time and place to meet.
| A．of, to | B．about, with | C．from, with | D．from, on |
The trees _____ in the storm have been moved off the road.
| A．being blown down | B．blown down | C．blowing down | D．to blow down |
Last night Mr. Crook didn't come back at the usual time., he met some friends and Stayed out until midnight.
| A． | Meanwhile | B． | However | C． | Instead | D． | Yet |
_______ the website of the Fire Department in your city, and you will learn a lot about Firefighting.
| A．Having searched | B．To search | C．Searching | D．Search |