Her ________ look suggested that shewas very _______ with the answer.

Scientists say it may be five or six years _______ it is possible to test this medicine on human patients

I talked with a foreigner for a long time yesterday.—Great! It’s a good _______ to practice English.

The team will fly to Los Angeles. Now there are many things _______.

Do you know the Tuttosport Golden Boy Trophy (奖杯) — Yes, it’s an award which ________to the best player in Europe under the age of 21.