If there were no examinations, we should have＿＿＿＿＿at school．
| A．the happiest time | B．a more happier time | C．much happiest time | D．a much happier time |
-Are you guys ready for the Campus Singers Competition?
-Sure! Since we are young, try it，__________ we will regret！
| A．and |
| B．but |
| C．or |
| D．then |
-Don't forget to return the book in two weeks.
-__________. Don't worry about it.
| A．Yes, I won't |
| B．No, I won't |
| C．Sorry, I wouldn't |
| D．I don't think so |
Do remember to go to his birthday party on time __________ you've promised to.
| A．now that |
| B．as though |
| C．even if |
| D．so that |
A technology company will die soon if it can't __________ to the market fast enough.
| A．reply |
| B．react |
| C．lead |
| D．attend |
We should follow the __________ in a foreign country we are visiting.
| A．habits |
| B．customs |
| C．tradition |
| D．practice |