—_______ listen to music in the classroom, Peter. —Sorry, I won’t, Mrs. Black.

__________at the door before you enter the office，or you’ll be considered impolite

______ different life today is from ______ it was fifty years ago.

 Attention! ________ in the form right now, making sure that every detail supplied is accurate.

Whatever happens, Tom, ________ drugs.

For further details about our newly developed products ________ our company's website.

Wherever you prefer to work after graduation, ________ close contacts with your family members.

The smoggy weather has made us realize ________ terrible problems we are faced with.

________ a strange plant！I've never seen it before.(2011·辽宁，33)

 If you have a job，________ yourself to it and finally you'll succeed.(2010·四川)

________ blood if you can and many lives will be saved.

 Please do me a favor—________ my friend Mr.Smith to Youth Theater at 7：30 tonight.

All the students who would like to visit the Province Museum, ______ down names here.

Cindy,       to be here at 8 o’clock.

 　　　　great progress it has made since Hong Kong returned to China in 1997.

________ you don’t know is that I spend ________ little time I had with my kids.

________ the kids had when they experienced the first snowfall--in the South.

---- Jack, you ________ the window quickly, will you? ---- Ok! Oh! The window ________ broken.

Every day ____ a proverb aloud several times until you have it memorized.

 ________ the instructions very carefully when filling in the form.