The law requires that everyone _____ his car checked at least once a year.
举一反三
- _________ medical checkup is advisable at least once a year.
- How often does Billy meet his cousins? A: Once a month. B: twice a year. C: Once a year.
- The paper is （）ready--it needs to be checked once more. A: after all B: just about C: in fact D: at least
- He has changed his ________ about buying a new car at least three times.
- In order to stay healthy, it is a good idea （） your doctor at least once a year. A: visits B: to visit C: that visits D: visited