to begin or cause something to begin: ______
举一反三
- People of different kinds of clans all begin to form a that the disabled person's cause is the cause of humanitarianism.
- If the engine does start on air， but combustion does not immediately begin， the cause may not be （）.
- Not until recently did people in our village begin to know something about Internet.
- ________, you must continue. A: Once you begin B: When you begin C: Once you will begin D: While you begin
- How to begin a topic? We can begin with __________.