96.The prime rate is the rate __which banks lend money to their best customers.
A) in
B) at
C) to
D) for

97. Democracy is a word______ which we are familiar.
A) at
B) with
C) of
D) about

98. She knows how to unwind the fine thread of silk ____ which the cocoon of a silkworm is composed.
A) by
B) from
C) of
D) with

99. I have five dictionaries, ______which Longman Dictionary of Contemporary English is the best.
A) in
B) to
C) of
D) with

100. It is believed that the fire caused by a short circuit in the lift machinery ____ to the which floor before it was discovered.
A) Was extending
B) had extended
C) has extended
D) would extend

96.B97.B98.B99.C100. B