A. who is singing B. is singing C. sang D. was sing
A. that B. which C. the one D. the one what
A. that againsts B. that aganist C. who is against D. who are against
A.worked…works B. works…work C. worked…work
A.see…is B. seen…was C. saw…is
A.go…go B. goes…goes C. went…went
A.spends B. was spending C. spent
A.opening…doing B. opened…did C. opened…do
A.study…was B. studied…is C. to study…is