A. having known B. being known C. knowing D. known
A. when B. then C. than D. until
A. isstanding B. standing C. stands D. Stand
A. hadmade B. hasbeenmade C. havemad D. hasmade
A. is B. are C. belongs D. Were
A. know B. knows C. knew D. knowing
A. had B. was C. were D. Have
A. was B. were C. is D. are
A. is B. are C. be D. was【
A. were;it B. are;them C. was;it D. is;them