There is usually ________ in summer in Yangzhou, it helps crops(庄稼) grow well.

Now the air in our hometown is ___________ than it was before. Something must be done.

Could you tell me _____ we are going to be away? — About a week. [ ]

Not only the children but also their mother ________ to go to the park.

May I ______ your dictionary for a while? —Sorry, I don’t have one.