She looks very happy. She ______ have passed the exam.—I guess so. It’s not difficult after all.

The weather in London is so changeable that people always take their umbrellas with them ____ rain

ung lady responded to my greetingwith a ______ look as if I were air, which made me feel somewhatembarrassed

下列各句中，没有语病的一句是（ ）

Look. There is a car coming fast the other direction.