—How far is it from Beijing to Haikou?

                                 —It's a______ flight from Beijing to Haikou.

I would give it to m____ research if I had a million dollars．
His mother is very ____ （有耐心的） and doesn't give up helping him．
Our football team won the prize．We were very e____ ．
He failed in the exam because he made many m____ ．
Wei Ming feels____ （不同） about English study．
____ （无论什么）I do, I always try to do it well．
Eating burnt meat can ____ （增加） the risk of cancer．
Books fill my life with____ （快乐）．
There are some fantastic sights in Paris, i____ the Eiffel Tower．
What should I do if I fell ____ （楼下）．

目的基因整合到某作物DNA片段上后（　　）

关于昼夜的叙述，正确的是（　　）