（ ） the 1500's （ ） the first European explored the coast of California.
（A）It was until; then
（B）It was not until; when
（C）It is until; that
（D）It was not until; that
（ ） was Mary who picked up the wallet.
（A）He
（B）She
（C）They
（D）It
I can't find Mr. Smith. Where did you meet him this morning? — It was in the hotel （ ） he stayed.
（A）that
（B）where
（C）which
（D）the one
