IF/ SOMEBODY/HAVE/ FLU/ THEY/ KEEP/SNEEZE.A.IF SOMEBODY HAS A FLU,...

18/ If/ somebody/have/ flu/ they/ keep/sneeze.

A.If somebody has a flu, they keep sneeze . B. If somebody have a flu, they keep sneeze

C. They keep sneezing if some one has a flu. D. Somebody has a flu if they kept sneezing