It was not until he arrived at the station______he realized that he had forgotten his ti

A.when; then

B.not; until

C.not until; that

D.only; when

It was ______ back home after the experiment.

A) not until midnight did he go B) until midnight that he didn't go

C) not until midnight that he went D) until midnight when he didn't go

A.energy

B. energetic

C. lazy

D. laziness

A.when

B.after

C.while

D.until

Not until yesterday ______ his mind.

A) did he change B) he changed

C) had he changed D) he had changed

It was()he arrived home()he realized that he had left his keys in the office.

A) until……that

B)not until……had

C) until……had

D)not until……that

A.It is until

B.It was until

C.Not until

D.It was not until

Not until darkness fell ____ he hadn’t done half of his work.

A. that he realized

B. that he didn’t realize

C. did he realize

D. didn’t he realize

A.he realized

B.did he realize

C.he is realizing

D.is he ralizing

A.when he

B.that he

C.and he

D.he

It was not _______ he took off his glass ____I realize who he was.

A、when;that

B、until;when

C、until;that