The noise of the desks _____ could be heard in the next classroom.
A: being opened and closed
B: opened and closed
C: having been opened and closed
D: to be opened and closed
A: being opened and closed
B: opened and closed
C: having been opened and closed
D: to be opened and closed
举一反三
- At the beginning of the class,the noise of desks ________could be heard outside the classroom. A: opened and closed B: to be opened and closed C: being opened and closed D: to open and close
- The noise of desks___could be heard out in the street. A: opened and closed B: to be opened and closed C: being opened and closed D: having been open and closed
- 4.Howare they opened? How are they closed?
- A．openedB．closedC．openD．close A: opened B: closed C: open D: close
- Thousands of workers lost their jobs when their factory _________. A: ended B: closed C: opened D: cleaned