Before you mail this letter, you should check again whether you have _______ it or not.
举一反三
- Before you mail the application letter, read it over again, (make) _____ sure that it is perfect.
- 4. Before you buy a pair of jeans, you should conduct research on the manufacturer to decide whether it is eco-friendly or not.
- When you are learning driving a car, it _____ whether you have a good teacher or not.
- The thing that _____ is not whether you fail or not, but whether you try or not.
- What should you do to check in the hotel when you have a reservation?