1 . You must keep your eyes open if you are going to make your trip to the UK __________ and worthwhile. (用适当的词填空)

2 . It seemed strange that the man who had developed __________ should have lived and died in London. (用适当的词填空)

3 . It's a pity that the industrial cities built in the nineteenth century do not __________ visitors. (用适当的词填空)

4 . It seemed that the water was to __________.(用适当的词填空)

5 . Tasks ___________ (安排) so tightly that break time is often used to finish the day’s work.