The map is one of the best tools a man has _ _ he goes to a new place.

How long ___________ each other before they__________ married?–For about a year

He is______honest boy . He is ___ hero in our society. We all like him .

Green economy offers a new model _____ people could both protect the climate and develop the economy, according to what Li said at the International Conference.

We didn’t know you were in trouble at that time,_____we would have given you a hand.