1.China（ ）the bid to host the the World Expo 2010.A.has won B.won C.in winning D.wins2.The old man always ( ) thick glasses and works very hard.A.puts on B.takes off C.dresses D.wears 3.（ ）the center of Australia（ ）the desert which seems

1.China（ ）the bid to host the the World Expo 2010.
A.has won B.won C.in winning D.wins
2.The old man always ( ) thick glasses and works very hard.
A.puts on B.takes off C.dresses D.wears
3.（ ）the center of Australia（ ）the desert which seems to go on forever.
A.Has;covered with B.Is;covered with D.Did;cover with
4.---Has Jack finished his homework yet?I am waiting for him.
---I've no idea.But he ( ) on it the whole afternoo.
A.is working B.was working
明天我就要期末考试了!

1、A 中国已取得了2010年世博会的举办权.应该是过去式,故选A..
2、D 这个老人总是带着老花镜努力工作.A 表示动作 B 摘下 与句子意思不符 C 搭配不合理 D 表示状态.
3、B 澳洲的中心已经被持续扩散的沙漠覆盖了吗?被动语态,如选A,应该是 been covered with .
4、A ---杰克完成家庭作业了吗?我正等他.
---我不确定.但是他整个下午一直在做家庭作业. A正在进行式 B过去进行式