Elephants are the ( large) land animals on earth.
Mr. Jiang's robot irons his business suit (smooth) every morning.
It will be a good (choose) to take the high﹣speed train to Yancheng from Suqian next year.
Literature helps us think and encourages us (open) our minds.
Every child wants to be the (proud) of their parents.
The question is a little difficult. Let's have a (discuss) about it.