单项选择题

It was not until I ______ your letter that I ______ all about the matter.

A．have read; knew
B．would read; had known
C．read; had known
D．had read; knew
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单项选择题
In Disneyland, every year, some 800 000 plants are replaced because Disney refused to ______ signs asking his guests not to step on them.
A．take down
B．call for
C．put up
D．set up
单项选择题
Allen had to call a taxi because the box was ______ to carry all the way home.
A．much too heavy
B．too much heavy
C．heavy too much
D．too heavy much
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