—— At the end of the day we can gather our guests to enjoy fine wine.
—— You seem to be getting off the point．How is that _________ to the discussion?
| A．suitable | B．tentative |
| C．parallel | D．relevant |
They find themselves surrounded by colorful rocks, fishes, seashells and plants, all ____ slowly in the blue water.
| A．waving and moving | B．waved and moved |
| C．waved and moving | D．waving and moved |
Even though the pure water is ____ gives sea water its main properties, the salinity of sea water affects both its weight and freezing point.
| A．the one | B．which | C．what | D．that |
Mike is Mrs.’ pet student, ____ all her students no one else is as nice as he.
| A．because | B．because of | C．with | D．as |
He came running along and climbed ____ the train just as it was about to leave.
| A．aboard | B．board | C．abroad | D．on abroad |
Just as one of the parents ____ it, students today are under far greater stress than ever.
| A．says | B．speaks | C．puts | D．gets |