Take short walks to calm down, or, _________，simply take a day off.
| A．if necessary | B．if not |
| C．if ever | D．if so |
There are certain _______when you have to interrupt people who are in the middle of doing something.
| A．chances | B．situations | C．occasions | D．opportunities |
.Being able to speak another language well is a great _____ when you're looking for a job..
| A．advantage | B．chance | C．assistant | D．importance |
It is_____work of art that everyone wants to have a look at it.
| A．so unusual | B．such unusual | C．such an unusual | D．so an unusual |
She looked up when I shouted.
| A．in a surprise | B．in the surprise | C．in surprise | D．in some surprise |
Oh, John. _____you gave me!
| A．How a pleasant surprise | B．How pleasant surprise |
C．What a pleasant surprise | D．What pleasant surprise |