The compulsory courses refer to those that you have to take.()
A: simple
B: voluntary
C: practical
D: required
A: simple
B: voluntary
C: practical
D: required
举一反三
- College students have to take required courses, but they can decide on their ( ) courses .
- This _________ I will be very busy because I have many courses to take.
- You have to take those shoes back and ask for a ____（退款）.
- 【单选题】In addition to compulsory courses, we have quite a few ________ courses at college. A: pursuit B: ecyclable C: optional D: moderate
- You have to take those shoes back and ask for a ____（退款）. A: repay B: return C: refund