Many students are _____ chatting online, which wastes them plenty of time.
| A．connected with |
| B．worried about |
| C．crazy about |
| D．anxious about |
Only athletes who have reached the agreed standard for their event will _____ as competitors.
| A．they be admitted | B．be admitted | C．admit | D．be admitting |
Beyond, a famous rock band, played its last concert in 2005 and then it officially _____ in Singapore.
| A．broke down | B．broke out | C．broke up | D．broke in |
The boy pretended when his parents entered the room.
| A．reading | B．to reading | C．to be reading | D．having read |
It is _____ that the middle-aged lady will pass the driving test.
| A．certain | B．confident | C．brief | D．sure |
The guitar _____ John composed their first hit is now in a music museum.
| A．by what | B．with which | C．on that | D．at which |