Would your younger brother go for a picnic this Sunday?—If I don’t go, _______.

The box is ______heavy______no one inour class can lift it .[ ]

____________ to do the repair, and what you need is only a hammer and some nails.

Ten dollars is not enough to buy the bag. Could you give me ________ dollars, mum？

Polly’s mother was anxious about ______ she could get home safely in ______ foggy a day.