This is a fact hitherto unknow
Some new sentences.
Ma Jianguo is a internet celebrity, but we don't even know what he looks like, this is a fact hitherto unknown this phrase ("a fact hitherto unknown") is seen in newspapers sometimes, but it sounds rather formal and old-fashioned.
What's the minimal price of this? Depends on what you mean. If you are asking for a lower price, you could say "What's the lowest price you can offer me?" or "What's the lowest you can accept?"
The accident constitutes a direct threat to humans.
As you can see, parallel lines never converge.
Streams converge to form a river, and rivers flow into the sea.
Uncle lai sleeps late everyday. However, he got up early this morning, so he surpassed by my expectation.
You cannot use "however" as a conjunction -- this is a very common mistake! :)
The parliament gave official approval to a budget.
The report provides a comprehensive analysis of the problem.
I have grown up, and I should undertake take on my responsibility.
My friend is a Christian, and he has a pious heart.
I don't know whether she loves me, and I am endeavoring to ascertain her mind. This is very formal!! It sounds a bit funny, like you are being sarcastic. I would say "and I'm trying to find out."
The manufacturer offers a discount for his large orders.
He is trying to coordinate the relation between them.
He bade to the hostess good-bye and darted out of sight. Again, "bade" is an old-fashioned word, rarely used nowadays. I would say "He said good-bye to the hostess".
Good sentences!! Are they related?
Thank you for correcting my grammar mistakes. :)