45.（   ）

(单选题)22.（ ） (单选题)21.（ ） (单选题)______ is the smallest unit of sound which is significant in (单选题)Language is the carrier of culture, and ______ are recognize (单选题)Communicative Approach is a new method for teaching English (单选题)When the teacher plays the role of ______, he needs to creat (单选题)______ is the rules in a language for changing the form of w (单选题)—Does he find out the truth?—______. I’m afraid he’s still l (单选题)For years we had little knowledge of ______ life was like in (单选题)They spend a lot of money ______ home improvements to get a