单项选择题

All the references she has obtained for her doctoral dissertation ______ about twenty items.

A．make up for
B．add up to
C．come up with
D．put up with

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单项选择题

Professor Jeffrey's lecture on the recycling of waste paper and other garbage will show ______ can still be improved.

A．that the municipal authorities have done
B．how those the municipal authorities have done
C．how what the municipal authorities have done
D．that how the municipal authorities have done

单项选择题

The senator was made to digress time and again from the main point of his speech because of the red ______ constantly ______ by his opponents in the audience.

A．tomatoes, thrown out
B．herrings, brought up
C．apples, put forward
D．mullets, laid down

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