18．It was back home after the experiment.A．not until midnight did he goB．until midnight that he didn’t goC．not until midnight that he wentD．until midnight when he didn’t go A: A．not until midnight did he go B: B．until midnight that he didn’t go C: C．not until midnight that he went D: D．until midnight when he didn’t go

Itwas_____lastyear______hecametorealizetheimportanceoflearningEnglish. A: until;before B: that;until C: until;that D: before;until

____the 1500s ____ the first Europeans explored the coast of A: It was not until…when B: It is until…that C: It was not until…that D: Itwas until…then

______ the game had begun that Jim and Tony arrived at the sports ground. A: It was not until B: It was until C: Not until D: Until

________ the year of 1949 _______ People's Republic of China was founded. A: It was until; that B: It was until; when C: It was not until; that D: It was not until; when

__________ I came to China __________ I knew what kind of country she is. A: It is not until; when B: It is until; that C: It was not until; when D: It was not until; that

--- Mom, can I play computer games for a while?-__________ your homework __________. A: Until, will be finished B: Until, is finished C: Not until, will be finished D: Not until, is finished

It was _____ his mother came in ______ to prepare his lessons. A: not until；did the boy begin B: until；that the boy began C: until；did the boy begin D: not until；that the boy began

Mr. Green ____ go to bed ____ he finished his work last night. A: does; until B: don’t; until C: didn’t; until D: did; until

He 　 go to bed 　 midnight last night .2 A: don’t ; until B: didn’t ; until C: did ; until