In Canada, general elections must be held at least once every ___. A: 2 years B: 3 years C: 4 years D: 5 years

There are usually ____years of elementary school, ___years of middle school (or junior high school), and ___ years of high school. A: 6; 3; 3 B: 5; 4; 3 C: 6; 2; 4 D: 5; 4; 3

How many years later did the author become Mark’s Math teacher again A: 3 years B: 4 years C: 5 years D: 6 years

How many years does the Rhus generally grow before it is cut for lacquer? A: 3 years B: 4 years C: 8years

How often is the World Cup? A: every 2 years B: every 4 years C: every year D: every 3 years

Eugene Volokh plans to graduate from UCLA in______. A: 1 or 2 years B: 2 and a half years C: 3 or 4 years

How often do we hold the Olympic Games A: Every 4 years B: Every 3 years C: Every 5 years

How often is the World Cup? A: every year B: every 4 years C: every 2 years

Visual acuity improves gradually and is emmetropia at ( ) A: 6 months old B: 3 years old C: 4 years old D: 5 years old

Of 30 applicants for a job, 14 had at least 4 years experience, 18 had degrees, and 3 had less than 4 years experience and did not have a degree. How many of the applicants had at least 4 years experience and a degree ？（） A: 14 B: 13 C: 9 D: 7 E: 5