Do you think Sonia will pass the math exam– Sure. She’s ________ so much time on it.

My son is very shy, but can you imagine ____ at the English party?[ ]

To Learn English well, You need to do a lot of practice in listening ,speaking ,reading and writing. _____ only learn some grammar rules.

This hotel is the highest building in the city, from _______ top you can enjoy a good view of our city.

下列各组词类活用相同的一组是（ ）