—I am wondering if we could go boating on the weekend. —It _____ a good idea.
_____ is known to all that oil and water don’t mix up.
Not until _____ ten _____ to school.
If _____ green, the door might look more beautiful.
Most mental illness is recognized only from the patient’s ____ behaviors.
He said he would ____ me to Mr Li as his assistant but he didn’t. A. commentB suggestC. commandD. recommend