About 71% of the earth’s surface ______ covered with water, but 20% of the world population ______ have access to safe drinking water.
| A．is; doesn’t | B．are; don’t | C．are; doesn’t | D．is; don’t |
It is important to have your eyes examined regularly to check for any sign of eye disease that may not have any ___.
| A．symptom |
| B．similarity |
| C．sample |
| D．shadow |
Internet is as___to learning as the ability to understand, even more so.
| A．vital |
| B．available |
| C．specific |
| D．similar |
报纸包含了一系列标题，提供了很多信息。(variety)
Newspapers offer information, and they also cover ___ ___ ___ topics.
他脱下湿衣服，拧干了上面的水。(squeeze)
He took off his wet clothes and ___ the water ___ ___ it.
她喜欢每件东西都各就各位。(place)
She likes to have everything ___ ___.