Private cars really provide much convenience to people, and ___ they cause too many problems.

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

I'm certain David's told you his business troubles. ______, it's no secret that he owes a lot of money to the bank.

The guide told us that he would organize some business men abroad＿＿＿next week. 

______ the agreement was reached without conflict.