1. Beijing in the past 20 years. has cut its birth rate by 60 percent

　　2. No agreement was reached in the talk as neither side (愿向对方做出让步).would give way to /give in to / yield to the other

　　3. When , the highest mountain does not seem high at all. compared with the size of the whole earth

　　4. Id have a room of my own, however small it is, . than share a room with someone else

　　5. Color-blond people often find it difficult . to distinguish/ tell between blue and green ; to distinguish/tell blue from gree