They form a polar molecule, ____ is, ____ with a slightly positive end and a slightly negative end.
|
A．which; that |
B．it; one |
C．that; one |
D．one; that |
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 |
