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 |
There’s not any beer left and the bar is shut so we’ll have to _______.
| A．go out | B．go off | C．go without | D．go through |
— Would you like to go to London with us next week?
— I’d like to, but my parents ______ that I am too young.
| A．are against | B．oppose | C．object | D．explain |
We have planted many trees in order to ____wind and sand in the desert.
| A．hold down | B．hold up | C．hold back | D．hold out |
— So, what do you think of your new roommate ?
— She really ____. She always making loud noises at midnight and when I remind her , she always makes rude remarks.
| A．turns me over | B．turns me down | C．turns me off | D．turns me out |
I_____the problem _____in my mind for a whole week before I did anything about it.
| A．switched; on | B．kicked; up | C．turned; over | D．took; on |