He failed the exam ________ he was too careless.
A. because B. but
C. so that D. so
You can’t do _______ before you finish your homework.
A. something B. anything
C. nothing D. nobody
Mr. Lee has worked in a bookshop _______ he left college in 2007.
A. until B. while
C. since D. from
Mike was ill yesterday, _______ he didn’t go to school.
A. if B. but C. so D. or
September is the ____ month of a year.
A. nine B. ninth
C. nineth D. ninety
The little girl was very happy ______ her new friend gave her a beautiful present.
A. but B. because
C. so D. although
