In western culture,21 was the age________ young people traditionally received a key to their parents’ door, as a symbol of entering adulthood.
| A．in which | B．on which | C．at which | D．to which |
Though ill, he hasn’t____smoking.
| A．quit | B．stop | C．stopped | D．forbidden |
My parents lent me money. Otherwise I____the trip.
| A．couldn’t afford | B．didn’t afford | C．afforded | D．couldn’t have afforded |
____his scientific work, he has no time to care for his family affairs, which his wife always complains about.
| A．Devoting to | B．Being devoted to | C．Devoted with | D．Devoted to |
She hurriedly left the room as if ___.
| A．she angry | B．was angry |
| C．it was angry | D．angry |
—She may not be free today.
—___, we’ll have to put the meeting off.
| A．If may | B．If not |
| C．If she may not | D．If she may not be free today. |