__we fail again ，we will have to give up the plan.
举一反三
- ________we fail again, we will have to give up the plan. A: Since B: Whether C: If D: Till
- We won’t give up ___ we should fail ten times.
- They would rather try and fail than (give)_____ up the plan.
- Because of a(short)（）of funds, we have to give up the project.
- We will fail in the interview if we have no (confident) ______.