_____ you eat the correct foods _____ be able to keep fit and stay healthy.
| A．Only if; will you | B．Only if; you will | C．Unless; will you | D．Unless; you will |
The book was written in 1946, _____ the education system has witnessed great changes.
| A．when | B．during which | C．since when | D．since then |
—Why didn’t you come to my birthday party last night?
—I planned to, but my parents simply not let me out so late at night.
| A．could | B．might | C．would | D．should |
—You look upset. What’s the matter?
—I had my proposal again.
| A．turning down | B．turned down | C．to turn down | D．turned to |
Victor apologized for to inform me of the change in the plan.
| A．his being not able | B．his not being able |
| C．him not to be able | D．him to be not able |
I really you for your way of making decisions.
| A．accept | B．absorb | C．advise | D．admire |