Exercise benefits every part of the body, including the mind. Exercise can help some people ___________ .

People ______ exercise regularly. A: can B: may C: should

3. People who exercise often are proven to have stronger __________ systems.

The federal union is a union of people in which ___________. A: the national government and state government receive power from the people and exercise authority over each other B: the national government and state government receive power from the people and exercise authority over the people C: state government receives power from the national government and exercises authority over the people D: the national government receives power from the state and exercise authority over the state

None of these people will admit responsibility for their actions. A: unwillingly agree to take B: willingly agree to take C: allow to exercise D: not allow to exercise

Research in the ___ shows that people are not getting enough “extreme exercise”. A: UK B: US

Now an increasing number of people are aware that a balanced____ and regular exercise are both for health.

______ fine mornings, old people get together and do exercise by the lake. A: On B: At C: To

Based on the results of the experiment with people, whose memory is better? A: Those who wait to exercise four hours later. B: Those who exercise right after they learn. C: Those who wait to exercise late at night. D: Those who exercise for four hours.

People_____exercise regularly. A: can B: may C: must D: should