Not until Mr. Smith came to China ___ what kind of a country she is.A.did he know B.he knew C.he did

Mr. Smith said that he did not want to ______ any further responsibilities.A．take onB．get

______ enough articles, Mr. Smith was refused promotion in his academic title.A．Not having

William: I d like to invite you to dinner this Sunday, Mr. Smith. Smith: ______A．No, let"

Not until I came home last night ________ to bed.A. Mum did goB. did Mum goC. went Mum

______ I came to China ______ I knew what kind of country she is.A.It is not until; whenB.

Mr. Smith drove slowly on the way home until he reached the highway ______ the speed limi