I like watching football matches but I am not very good

16.I like watching football matches but I am not very good __________ playing   football.

A.at               B.in             C.on                 D.for

17.Last summer, I __fishing with my uncle in the afternoon.A.go    B.went   C.goes        D.going

18.Nam plays sports very often, so he looks very __________.

A.sport                B.sports                 C.sporty                 Dsporting

19.___ draw on the walls and tables, please?  A.Do    B.Don’t    C.Should   D.Shouldn’t

20.Marathon is considered a/an ___ sport.  A.team    B.individual       C.indoor   D.sporting