I’d appreciate ____ if you would like to teach me how to use blog and twitter on the Internet. [ ]

for the timely investment from the general public, our company would not be developing so fast as it is.

Call me at 5: 30 tomorrow morning．—Why that early I _____ then．

Are you familiar_______ Tongli -No, the place is unfamiliar_______ me.

Mrs. White looks old for her age.-Yes. It worries her most ________ her hair is turning gray.[ ]