The problem had become _____ in his mind, and he could not decide what to do about it.
| A．simplified | B．exaggerated | C．matured | D．isolated |
Tom owns______larger collection of_______books than any other student in our class.
| A． the; 不填 | B． a; 不填 | C． a; the | D．不填; the |
When you come here for your holiday next time don’t go to______________hotel; I can find you___________bed in my flat.
| A． the; a | B． the; 不填 | C． a; the | D． a; 不填 |
Paper money was in___________use in China when Marco Polo visited the country in __________thirteenth century.
| A．the … / | B．the … the | C．/ … the | D．/ … / |
Most animals have little connection with_______animals of________different kind unless they kill them for food.
| A．the … a | B．/ … a | C．the … the | D．/ … the |
The warmth of _____sweater will of course be determined by the sort of ____wool used.
| A．The ; the | B．the ; / | C．/; the | D．/; / |