His mother is (very well).- How is his mother
This pair of pants is (fifty yuan).- How much is this pair of pants
The pants are (sixty yuan).- How much are the pants
Amy has (some) tous in her room.- How many tous( 这个单词你打错了) does Amy have in her room
She drinks (a glass of) juice every day.- How much juice does she drink every day
There are (three boxes of craons) on the desk.- What's on the desk
不明白的再问哟,请及时采纳,多谢 !