单项选择题

Tourists often surprised at （） so many flat and good roads in the mountainous regions.

A、there are
B、there being
C、there to be
D、there were

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单项选择题
The more we look at the painted picture hung on the wall, （）.

A、we like it less
B、less we like it
C、the less we like it
D、we less like it
单项选择题
Mary has got a full mark in the test. She （） very hard all these days.

A、 will work
B、may work
C、could have worked
D、must have worked
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