AIDS is said_______ the biggest health challenge to both men and women in the earth over the past four years.
The price of goods kept ______. We had to cut the expenses in order to meet our daily needs.
The more we prepare,______ difficulties we have.
Mr. Smith, I should tell you this is the fifth time you ______ me for my twin sister.
If you don’t like the drink _____, just leave it and try a different one.
— Do you mind me putting your photo on the Internet? — __________.