David is the current holder of the 5,000-meter world record, but there is no ____ that he will win in the Olympic Games.

Foreign trade, the ____ of goods between nations, takes place for many reasons.

At last, I should thank Mr. White for the _______ of speaking here and for ensuring me such an attentive audience.

He created a lot of vivid characters in his best-selling novels, thus winning the ______ of book-lovers all over the world.

Much to his joy, the old man may be able to get a hardship _____ from the government,   which covers his expense.

According to the recent research, heavy coffee drinking and heart attack is not necessarily ______ and effect.

What ________surprise you gave us by wearing such funny________ at so serious a meeting!

Glad to meet you and here is my card. Let’s keep in______ later.

Before he started work, I asked the builder to give me a(n)_______ of the cost of repairing the roof.