Work colthes must cover the ( ) and ( ).
举一反三
- Work must come ______ (one).
- The old cover of the book ______. A: must be used B: is sometimes used C: should never be used
- A newspaperman must have the ability to work _____ pressure.
- To succeed, you must _______ work hard for it.
- To work __________with the machine，you must read the instructions carefully.