Have you applied ___________ Mr Black _____________ the post It’s worth a try.

Do you think their table tennis team willwin the first place at the coming Asian Games—________.Ours is much stronger thantheirs.

The energy is ________ makes the cells able to do their work.

It is required that each of the students chosen _____ good preparations ahead of time.

Which month has _______ days in a year—February.