“We can’t go out in this weather,” said Bob, _____ out of the window. [ ]

__________ years ago, life was much harder than it is today.

Mr. Li goes to work ___ bus, but sometimes he ___ the train.

So suddenly _____ that I hadn’t prepared for it. What a pity I had let it go!

Look out! Don’t get too close to the house _________ roof is under repair.