_____the beginning of the 19th century did scientists know that all matter is made up of atoms.
A,At B,By C,Up to D,Not until
How much does that?
| A．add | B．add up | C．add to | D．add up to |
__________ English has changed a lot over time and __________ English spoken between about AD 450 and 1150 was quite different.
| A．/; the | B．/; / | C．The; / | D．The; the |
I prefer a flat in the suburb to ____ in downtown, because I want to live near my Mom’s.
| A．one | B．that | C．it | D．this |
Taylor was fined by ____ police because he didn’t have ____ driver’s license.
| A．a; the | B．the; the | C．a; a | D．the; a |
My client cannot come but I appear on ______.
| A．name | B．interest | C．representation | D．behalf |