In Hangzhou, Mr. Black was so struck ______ the beauty of nature that he stayed ________ another night.
Please do me a favor —_____ my friend Mr. Smith to Youth Theater at 7:30 tonight.
You and I could hardly work together, _____?
Do you consider it any good _____ psychology?
Lack of money led the company to a situation _____ they had to decide whether they should keep on with their production.
_____ by the advances in technology, many farmers have set up wind farms on their land.