---We're going for a picnic next Sunday, and I'd like you to join us.
---____________！I have to see my grandmother. She has been ill for two weeks.
A．What a pity B．Good luck C．That’s all right D．Go ahead
---- May I smoke here?
--- If you , choose a seat in the smoking section.
A．should B．could C．must D．may
There are lots of problems in your hometown, but we're happy to see many of them________.
A．are solving B．are solved C．have solved D．are being solved
Everyone is different and that is ________ makes our world so much better.
A．that B．which C．what D．who
The rich shouldn't________their wealth. Instead, they should contribute more money to the poor.
A．show off B．take off C．put off D．give off
Try to be independent, for your parents can't do__________for you all your life.
A．something B．nothing C．everything D．anything
