Leave your key with a neighbor _______ you lock your-self out one day.
A.ever since B.even if
C.soon after D.in case
I got caught in the rain and my suit _______.
A.has ruined B.had ruined
C.has been ruined D.had been ruined
You have failed two tests.You’d better start working harder,_______ you won’t pass the course.
A.and B.so C.but D.or
The new group of students is better-behaved than the other group who stayed here _____.
A.early B.earlier C.earliest D.the earliest
He is a student at Oxford University,_______ for a degree in computer science.
A.studied B.studying
C.to have studied D.to be studying
—Excuse me sir,where is Room 301?
—Just a minute.I’ll have Bob _______ you to your room.
A.show B.shows C.to show D.showing