--- Shall we go out for a walk?--- Sorry. This is not the right_______ to invite me. I am too tired to walk. (2008 .江西)
________ will be in charge of the project______ been decided yet.
______worried the child most was _____ to visit his mother in the hospital.
We shouldn’t complain about________, because many families are much _____ in the mountainous area.
All the machines stopped _____ with the electricity _____ throughout the factory.
You should try to get a good night’s sleep ________ much work you have to do.