问题

You have failed two testsYou’d better start working harder, _____ you won’t pass the course[ ]
A: and
B: so
C: but
D: or
B: so
C: but
D: or
正确答案是:
同类题型
Let’s do sports after school.—OK. _______ playing basketball
One feels it hard to fit in with a newculture _______ he has been accustomed to his won culture.
I’d like to find __________ to read on the journey and __________ will do
When can they finish the project — ________. Just wait.
ened to Dr.Wilson’slecture about the protection of wild animals, but I was unable to grasp its key.