From space, the earth looks blue. This is about seventy-one percent of its surface is covered by water.
| A．why | B．how | C．because | D．whether |
It is ______ unusual feeling for animal lovers to see ______ giant panda, one of China’s most famous animals.
| A．an; 不填 | B．an; the | C．the; the | D．the; 不填 |
I ______ in No.46 Junior High School for four years. Now I have been a student of Tieren Senior High School for three months.
A have studied B had studied C was studying D studied
Joseph ______ to evening classes since last month, but he still can’t say “What’s your name? ”in Russian.
A has gone B has been C has been going D goes
We often provide our children with toys, footballs or basketballs, ______ that all children like these things.
A thinking B think C to think D thought
______ of the earth’s surface ______ covered with water.
A Two-third; is B Two-third; are C Two-thirds; is D Two-thirds; are