Our physics teacher explained to us that light______faster than sound.A．is travelingB．trav

Teachers need to be aware of the emotional, intellectual, and physical changes that young

Our English teacher has agreed to _____ the time limit for our paper.A. spreadB.

Our teacher always encourages us to speak English bravely.英译汉

Teachers need to be aware of the ______, intellectual, and physical changes that young adu

The students didn t manage to work out the problem ______ their teacher had explained how

Because ________ bad weather we had to have our physical education class in the classr