--- How about going for a picnic this coming Sunday?--- _________, but I have to see my grandma with my parents.
_____writer is better known in China, Charles Dickens or Mark Twain?
Shall we stay at home or_____to the park?
——Do you think the question easy or not? ——_____ .
I go or_____you go yourself?
——Would you rather go there by train or by air? ——_____.