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单项选择题

A．had been workingB．will go to workC．is going to workD．……




A．had been working
B．will go to work
C．is going to work
D．was going to work
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单项选择题What kind of books did Braille's teacher use

A．Ones with cloth letters.
B．Ones with printed letters sticking out from the pages.
C．Ones with dots standing for letters.
D．Ones with thick paper punched with an awl.

单项选择题Why weren't the teacher's books good enough for Louis

A．The words were so hard.
B．The words took up so much space.
C．It took so long to read a book.
D．It was difficult to read.

单项选择题How did Braille make use of raised dots in his code

A．He used them for the 26 letters of the alphabet.
B．He used them for pictures.
C．He used them for punctuation marks and short words.
D．Both A and C.

单项选择题Why did the captain's night writing excite Braille

A．It used dots and dashes instead of letters.
B．It used sounds instead of letters.
C．It could be read by touch instead of sight.
D．It could he read at night.

单项选择题Caffeine ______ if you want to have a good sleep.

A．should be taken seven hours earlier
B．should not be taken
C．should be taken two or three hours earlier
D．should be taken little