A. was B. is C. are D. were
A. can't B. shouldn't C. may not D. mustn't
A. or B. and C. but D. unless
A. while B. when C. after D. before
A. too; that B. cither; or C. so;that D. too, to
A. to wash B. washing C. to be washing D. wash
A. that B. which C. who D. what
A. as B. which C. until D. that
A. when Tom will come back B. when will Tom come back C. when Tom would come back D. when would Tom come back