中国大学MOOC: We can _____ bills at any time before the L/C expires.
举一反三
- 中国大学MOOC: Any offer can be withdrawn if the withdrawal reaches the offeree before an acceptance is dispatched.
- 中国大学MOOC:"You can visit the visa application center at any time you like. ";
- We want to improve our spoken English, we can't write at any time, we can only speak casually.
- 中国大学MOOC: I dont think we can finish all the work before Friday, ______?
- 中国大学MOOC: Paper-cutting has a very long history and can date back to the time before paper was invented.