His illness ________ his absence．So don’t scold him．
| A．showed | B．accounts for | C．explains | D．gives out |
John is very _____ --- if he promises to do something he’ll do it．
| A．independent | B．confident | C．reliable | D．flexible |
Compared with his sister, Jerry is even more ______ to, and more easily troubled by, emotional and relationship problems．
| A．sensible | B．addicted | C．available | D．sensitive |
Frank put the medicine in a top drawer to make sure it would not be _____ to the kids．
| A．accessible | B．relative | C．acceptable | D．sensitive |
You’d sound a lot more polite if you make a request _____ a question．
| A．in search of | B．in the form of | C．in need of | D．in the direction of |
Many of the earth’s plants and animals have already ______ and several other species are endangered．
| A．died away | B．died out | C．died down | D．died of |