题目内容
（请给出正确答案）
Not until __began to work how much time I had wasted.
A.didn’t realize
B.did I realize
C.I didn’t realize
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更多“Not until __began to work how …”相关的问题
It ______ our teacher came that we began the examination.
A．was until
B．is until
C．was not until
D．is not until
Not until I began to work ______ how difficult it was.
A．I knew
B．I did know
C．did I know
Not until I began to work ______ how much time I had wasted.
A．didn't I realize
B．did I realize
C．I didn't realize
D．I realize
A．Because the volcano began on 14th November 1963.
B．Because they didn't stop until June 1967—four years later.
C．Because they were able to watch the birth of a volcanic island.
D．Because they were staying until the volcano grew into an island.
A．it was not until hundreds of the vast blocks had been built that people began to doubt whether they were good solutions or not
B．hundreds of the vast blocks had not been built until anyone began to doubt whether they were good solutions or not
C．people began to doubt whether they were good solutions or not before hundreds of the vast blocks had been built
D．since hundreds of the vast blocks had been built, some people began to doubt whether they were good solutions or not
A.should they have arrived
B.had they arrived
D.would they have arrived
C.did they arrive
A．The Byzantine military revival of the 860's led to economic and cultural advances.
B．The Byzantine cultural revival lasted until 1453.
C．The Byzantine economic recovery began in the 900's.
D．The revival of Byzantine began toward the end of the eighth century.
A.昨晚开始下雨，最后，今天下午停了。
B.大雨昨晚开始下，一直持续到今天下午。
C.前天晚上开始下雨，今天下午才停。
A．In America cars have been equipped with safety belts since 1964.
B．In America cars were equipped with safety belts until 1964.
C．After 1964, some organizations began to advocate the use of safety belts.
D．Some organizations began to advocate the use of safety belts in 1964.
