---Bear in mind that you won't be able to cancel the contract ____you've signed.
--- I _____.
A.unless; do | B.since; will | C.once; will | D.after; have |
相关知识点
推荐套卷
---Bear in mind that you won't be able to cancel the contract ____you've signed.
--- I _____.
A.unless; do | B.since; will | C.once; will | D.after; have |