________ you enjoy ________ in the river?

It is said that ____ young people may lose the abilities to hear after five years if they listen to MP4 players which are too loud for more than five hours a week.

What food did you ________ just now? –Beef noodles, but it hasn’t arrived yet.

Dictionaries are often used _____ learners.[ ]

If it____ tomorrow , we won’t go to the park.