Staying in a hotel costs _____renting a room in a dormitory for a week.（）

• A、twice more

• B、twice as much as

• C、as much twice as

• D、as much as twice

57（）

The writer suggests that when talking to others, the speaker should .

• A、know that listeners will show him that they understand his words

• B、express himself clearly even when he sees signs of understanding

• C、notice listener’s signs of understanding

• D、look directly into his listener’s eyes