what ____ three and four.a.is b.are c.am

What ____ Amy and Sam doing?a.are b.am c.is Four and five _____ nine.A.are B.is C.am If two is company ,and three is a crowd ,What are four and f What's on your desk?There ____ some books.A.am B.is C.are 选哪 What class ____ you in?A.are B.am C.is Linda and I ____ at home 空格处应选填.A.am B.is C.are My hair ____ long and yellow.A is B are C am Where ____ John and Tom?A.is B are c am What's four and three?It's_____.A six B seven C eight D nine What class ( ) KangKang and Jane in?A.is B.am C./ D.are 为什么 What （ ）Mike and Tom going to do tomorrow?A.am B.are C.is Are you ____ Yes,I am.A.Row Four B .in Row four C.in Row Fou