He is always _______ not to dothat；but hestill goes on doing it all the same．

________, the students remain optimistic and try hard to achieve their goals[ ]

Everything _____ doing is worthy of_____ well.

I have to _________ now It is time for class — OK, I’ll call back later

—Have you got your exam papers?—Not yet. I guess they ________ at this moment.[ ]