—Hi, Jack! —Hi, Eric! You ________ reall
问题:
—Hi, Jack!
—Hi, Eric! You ________ really quiet, but now you are very outgoing.
A.used to
B.use to
C.used to be
D.use to be
—Hi, Jack!
—Hi, Eric! You ________ really quiet, but now you are very outgoing.
A.used to
B.use to
C.used to be
D.use to be