消防员在大火中总共救出来12人，他们太勇敢了！
The firefighters were so brave that they saved twelve people in the fire ________.
He went （野营） with us and taught us how to put up a tent．
Mr． Wu said he had （很少）seen a child with so much talent．
Everyone should （行动）now to separate rubbish into different groups．
It is important for us （学会如何表达）our sincere thanks to others．
Suddenly，Lucy saw a policeman near the bus station．"I may ask him for help．"She _ （自言自语）．