We must prevent the trouble ______ spreading
举一反三
- We must prevent them ___ making trouble A: on B: behind C: from D: for
- We must do everything possible to prevent such things from ________ again.
- We must do our best to prevent such a thing _______ happening again.
- We must ______ the feelings of other people. A: prevent B: consider C: think D: see
- We must find ways to prevent the poisonous gases ________ polluting the air. A: in B: with C: from D: of