The argument remains extremely heated it is necessary to frequently update teaching material.
| A．that | B．which | C．if | D．whether |
All their hard work has !The project is finished at last.
| A．paid off | B．paid back |
| C．paid for | D．paid out |
---Mum, have you seen my U-Disk?
---____________ you bought last Sunday? I'm afraid I haven't seen ________.
| A．The one; one | B．That; one |
| C．One; it | D．The one; it |
Mary is so quiet a girl that she seldom speaks in public places unless _____ to.
| A．is spoken | B．is speaking |
| C．speaking | D．spoken |
news came to us as great surprise that Malaysia Airlines Flight MH370 crashed with 154 Chinese passengers on aboard.
| A．A; a | B．The; a | C．The; the | D．The; / |
the occasional visit, what else does Alan do for his kids?
| A．Except | B．In spite of |
| C．Apart from | D．Beside |