1.---How do you think Kate can make it up with Laura?
---Set aside _____ they disagree and try to find ______ they have in common.
A. what, what B. where, what C. what , whether D. where, whether
2.Anne felt tired and terrible, which was ____ she was late for the chemistry examination,
A. why B. where C. whether d. what
3. He must be helping the old man to water the flowers,______?
A. is he? B. isn’t he? C. must he D. mustn’t he