问题
I got quite worried _____ the coming final exam.[ ]
A: because
B: because of
C: so
D:since
B: because of
C: so
D:since
正确答案是：
同类题型
If you do things ________, usually you can’t do them well.[ ]
________ the boss has arrived, let’s begin our discussion right away.
The library is _____ the restaurant and the supermarket.
Would you please help me fix my computer? — ________ .
What time do you usually get up ________ Sunday?—I usually get up ________ 8:00.[ ]