________there is no law stating how you may dress,not all fashions are respectable.
A.Because B.Since
C.While D.Unless
I will put the book________you placed it and make a mark at the place________I put it.
A.where;at which B.at which;at which
C.where;which D.at which;where
________ you may have,you should gather your courage to face the challenge.
A.However a serious problem
B.What a serious problem
C.However serious a problem
D.What serious a problem
—Haven’t seen Lucy recently,what’s happened?
—Oh,it’s more than two months ________ she worked here.
A.which B.that
C.before D.since
________you’ve experienced it,you can’t understand how I felt.
A.Once B.Because
C.Unless D.While
I had no idea of the exact address of Xinhua High School ________I was outside its front gate.
A.when B.after
C.until D.because