It takes a long time to go there by train； it’s ＿＿＿＿by road. 

After days of fantastic space trip, the three astronauts walked out of the spaceship, _______.

——John always thinks of others instead of himself.—— So he does. It is _______ of him to want to help others.

— I bought the furniture at half the        price.— Well, it’s really a bargain .

In that school, English is compulsory for all students, but French and Russian are       .