_______ from the moon, our earth, with water _______seventy percent of its surface, appears a blue ball
17.--- Mary, I have got a new cell phone number! --- Oh, hold on. I’ll put it down just___________ .
16.--- I’m not good at singing, you know. ---_________. It’s just for fun.
15.--- Do you have any blouses in yellow? --- Sorry, we don’t. What about this cream color? It___________well with almost anything.
14.The forest guards often find campfires that have not been________completely.
13.Many medical scientists are racing__________time to find a cure for H1N1 as soon as possible.