21. you’ve put on weight. you get more exercise. a can b could c should d would 22. passengers smoke in the no-smoking area. a could not b must not c have to d can 23. if you’re going to the supermarket you get me some groceries. a could b have to c will d should 24. unless you give that plant some water it die. a would b will c can d must 25. when you reach the top of the hill you see for miles and miles. a should b must c would d can

21.      You’ve put on weight. You get more exercise.
A      can B      could C      should D      would

22.   Passengers smoke in the no-smoking area.
A      could not B      must not C      have to D      can

23.   If you’re going to the supermarket you get me some groceries.
A      could B      have to C      will D      should

24.   Unless you give that plant some water it die.
A      would B      will C      can D      must

25.   When you reach the top of the hill you see for miles and miles.
A      should B      must C      would D      can