一.单选题(40分)
( )1. —Jim,I want to be __________ engineer when I grow up.
—Sounds fantastic.
A. a B. an C. the D. /
( )2. —Did your parents go to climb Mount.Tai last Sunday?
—No, they _______went to a movie.
A. both B. all C. either D. each
( )3. — We can’t pass the exam, ______ we study hard
A. because B. unless C. though D.or