How about your present salary—My basic salary is about $500 and _____I’ll receive some extra income.

The thought ______he might be a scientist some day encouraged him to study hard

I made ________ acquaintance of his sister at the party and then I fell in ________ love with her.

e the students understand the problemthe teacher tried to explain it, but the explanation just did not _________tothe class．

Online music providers in China hope to set up a plan that will charge individual users for music