The time he has devoted in the past years __________ the disabled is now consideredto be __________ great value __________ him.

n’t seen Sara since she was a little girl, andshe has changed beyond ____

Hello Mum， Are you still on Lushan Mountain—Oh， no. We are back home. We __________ a really good journey.

______ it rained heavily, no one in our class was latefor school.

He hopes ______ a swimmer in the future, so he is busy practicing ______ after school.