The tomato juice left brown ____ on the front f my jacket．
| A．spots | B．points | C．tracks | D．traces |
_______ as many local people as possible when you are abroad and you find it easier to overcome the culture difference.
| A．To know | B．Knowing | C．Known | D．Know |
Any habit ______ slows down your silent reading to the speed at which you speak, or read aloud, is inefficient.
| A．which | B．/ | C．that | D．who |
—Here you are at last! What kept you so long?
—Sorry, I’m late. But do you know what great difficulty I have ______ your house.
| A．found | B．finding | C．to find | D．for finding |
_______ to be much chance of our catching him up in the near future.
| A．You don’t seem | B．It doesn’t seem |
| C．That doesn’t seem | D．There doesn’t seem |
Modern science and technology has ______ communication between people far apart.
| A．made it convenient for | B．made it convenient |
| C．made convenient | D．made it convenient to |