-If we take a plane, we’ll of course have arrived in London by the next weekend.-Don’t be too sure. We should _____ the weather factor. What shall we do if it is foggy?
24. China Construction, an edition de luxe is not a weekly or bimonthly magazine but it comes _____ every season (quarterly).
23. Once you make a promise, you should carry it _____.
22. This is ____ interesting story I have ever heard.
21. The river runs _____ here, into South China Sea.
20. My business brings _____ such a big sum of 200,000 yuan for “the Hope Project”.