21.      You’ve put on weight. You __________ get more exercise.A      can B      could C      should D      would22.   Passengers ______________ smoke in the no-smoking area.A      could not B      must not C      have to D   ...

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