＿＿＿＿to my regret, I am unable to accept your warm invitation. 

They’ll be here soon. ______ we’ll have some coffee.

One car went too fast and_________missed hitting the other one.

Peng’s company makes __________700,000 yuan for each partnership it sets up and more importantly, benefits both local people and foreign countries.

The doctor will see you again next week. _____, you must rest as much as possible.