--- Why don't you try to do exercise to lose weight?--- I have tried everything but it has made little ______.

The country’s 　　　is based on trade.

The first performance of the musical play “The Sound of Music” aroused ____in audience.

Can you think of a _____ in which you could use this expression.

I wished to make a round-the-world tour by plane but I hadn't enough money to pay for the ___.