I made a promise to myself _______ this year, my first year in high school, would be different.

.Manufacturers should have professional productivity and technical knowledge to ______ the quality of the products.

Excuse me, but could you tell me ? I’d like to drop him a line.

Did you go to the show last night?—— Yeah． Every boy and every girl in the area ____ invited．

There was ______ time _____ Chinese used foreign oil