It's said to be a case of murder ________ the children were used by adults.
A.when B.where
C.which D.that
Naturally a smile ________ the eyes participate is extremely communicative.
A.to which B.in which
C.at which D.with which
With hundreds of attractions, Beijing is a city ________ makes a lasting impression on its visitors.
A.which B.where
C.what D.when
Just use this room for the time being, and we'll offer you a larger one ________ it becomes available.
A.as soon as B.unless
C.as far as D.until
Everything was placed exactly ________ it used to be before she left the laboratory.
A.why B.when
C.where D.though
________ I'm mistaken, I've seen that tall man at a party before.
A.If B.As
C.Unless D.When