Everybody has ______ responsibility to save water, if future generations are to enjoy _____ similar standard of living to the one we enjoy now.
| A．the; / | B．a; a | C．/; the | D．a; the |
The store had no more red shoes _____, so Mary chose brown ones instead.
| A．in demand | B．in store | C．in need | D．in stock |
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 |