1. 

—You look tired today. What's wrong?

—I have ______ flu. I have to see a doctor.

A.the                              B.a                                  C.an

2.  No one can be successful ______ hard work.

A.without                     B.against                      C.through

3. 

—______ does Tom spend buying books every month?

—About twenty yuan.

A.How many                B.How much                C.How often

4. 

—Can you tell me the ______ why you love reading?

—Because reading makes a full man.

A.advice                        B.reason                       C.chance

5. 

—Do you know the writer, Liu Cixin?

—Oh. He is ______ his work The Wandering Earth.

A.tired of                      B.popular with            C.famous for

6.  —It's _____ for us to learn about first aid.
—Yes, so we are possible to give a hand when accidents happen.

A.necessary                  B.terrible                      C.funny