26. We'd better make _____ with him. (friend)

25. They were ______ the young trees when the teacher came. (water)

24. It's _____ nice of you. Thank you very much. (real)

23. Let's go and have a look at the ______ sweater. (wool)

22. This kind of sign is used for ______ visitors. (stop)

21.______ last few days I have been writing some articles. (this)

20. Three _____ in our class are boys. (five)

19. Some ______ were operating on the patient. (woman doctor)

18. Lucy is going _____(shop). There is a _____ list in her basket, (shop)

17. Mr. Green has been to the south _____. (two)