Instruction: Choose the word opposite in meaning to the underlined word. The principal wants us to....the motion, so don't oppose it.

Answer Details

The opposite of "oppose" is "support." When you support a motion, you are in agreement with it and favor it, whereas when you oppose it, you are against it and do not favor it. In this case, the principal wants the students to support the motion, not oppose it. Therefore, the correct option is "support."