The little boy slipped into his bedroom quietly _______ he might wake up his mother.
A. so long as B. for fear that C. on condition that D. in order that
A good many cases will be discussed by the students _______ English beginners fail to use the language properly.
A. which B. as C. why D. where
It’s said in some parts of the world, goats, rather than cows, serve as a vital _______ of milk.
A. storage B. source C. reserve D. resource
Who can you turn to in time of danger, if not _______?
A. any B. us C. we D. ours
A story goes _______ Elizabeth I of England liked nothing more than being surrounded by clever and qualified noblemen at count.
A. when B. where C. what D. that
—I reminded you not to forget the appointment with the house agent.
—_______, but I was caught in a traffic jam.
A. So you did B. So I did C. So did you D. So did I