Do you laugh every day? Most people     _. Scientists say that people laugh about 17 times a day. That is       laughter.
In India, there are         laughter clubs. The people in these clubs get together every morning. First they stretch their hands above their heads. Then they pretend to laugh. Soon everyone is laughing naturally. People say they feel good after            together.
Scientists believe that laughter is good             you.              ? For one thing, laughter is         good exererse. When you laugh, you exercise many muscles in your body
Scientists say that one hundred laughs is the same          ten minutes of running. When you laugh, you        breathe deeply. This makes you      
Why do we laugh? That is a hard question           . We know that people laugh _       _ in a group. They don't laugh very often when they are alone. Many scientists believe that we use laughter to make friends with         . Laughter helps us feel part of a group.
In English, people say that laughter is the best        . Some think that laughter helps sick people get           . Do you think so, too?
A. laugh                     B. do                         C. does
A. a lot                     B. many                       C. a lot of
A. hundred of                B. hundreds of                C. hundred
A. laugh                      B. to laugh                   C. laughing
A. for                       B. at                          C. with
A. Why                       B. What                       C. How
A. a                          B. the                         C./
A. as                        B. like                        C. for
A. oo                        B. also                        C. either
A. relaxed                  B. to relax                   C. relaxing
A. answered                 B. to answer                  C. answer
A. less often                B. more often                 C. never
A. another                  B. others                      C. other
A. magazine                 B. knowledge                  C. medicine
A. well                     B. good                       C. bad