Our society insists on regular habits, timekeeping and punctuality, and whether we like it or not, ______ we mean to make our way in society, we have to comply ( to act in accordance with a demand, rule, etc.) its demands.
| A．whether | B．after | C．if | D．until |
With challenges before you, you should believe your courage is makes a difference.
| A．that | B．what | C．which | D．whatever |
Our chemistry teacher announced that he would do the experiment in a different way
we might find interesting.
| A．which | B．in which | C．in that | D．whom |
While she is a lovely girl, she be extremely difficult to work with.
| A．may | B．must | C．should | D．can |
A dictionary is necessary if you want to learn English, so you’d 
better buy .
| A．this | B．that | C．it | D．one |
–Jimmy had a lot of parties recently.
—Yes, that might why he didn’t do well in the test.
| A．sum up | B．add up to | C．account for | D．make sense of |