I can’t imagine there be a shortage of water in Yunnan, the southwest of China where there used to be adequate (充足的) rain .
28. John may come to see me tonight. I can’t go to the movie with you______he visits.
27. —— My goodness! I've just missed the train. —— That's too bad. I am sure you__________it, if you had hurried.
26. The pen I _______ I _______is on my desk, right under my nose.
25. He is one of the old scientists who ______nothing about his personal income and fame .
24. —— How about camping, just for a change? —— OK, ______ you want.