_________ you are on holiday,you should enjoy leisure time and take your focus off your work．
| A．Now that | B．Even if | C．If only | D．As though |
The manager put up a notice to keep the staff ________of what to do this week．
| A．inform | B．informing |
| C．informed | D．to inform |
_____ I can’t fully understand what his music conveys, his performance is quite impressive.
| A．As | B．Since | C．If | D．While |
His uncle went abroad in 2010, and ________since.
| A．has not been heard of |
| B．had not been heard of |
| C．had not heard of |
| D．has not heard of |
It is required in the library regulations that any book borrowed __________ by due time, or the borrower will be fined.
| A．return | B．be returned |
| C．returns | D．is returned |
I broke my relationship with John because he always found _______ with me.
| A．error | B．mistake | C．fault | D．failure |