There are 51 students in Class Three, _____ failed in the test.
| A．all of which | B．all of them | C．none of whom | D．none of them |
. Don't go too far into the sea, children, or the waves will _____ you off your feet.
| A．flow | B．cut | C．press | D．sweep |
He was _____ by a bee when he was collecting the honey.
| A．scratched | B．pricked | C．stung | D．bitten |
A landing on Mars is within the _____ of current physical theory.
| A．scheme | B．scope | C．scrap | D．scale |
You will get to the church more quickly if you take this _____ across the fields.
| A．track | B．passage | C．method | D．journey |
He gave me some very _____ advice on buying a house.
| A．precious | B．worthy | C．precise | D．valuable |