______is known to us, bad eating habits are still very common among us students.
| A．It | B．As |
| C．Which | D．What |
——My cat’s really fat.
——You____________have given her so much food.
| A．wouldn’t | B．couldn’t |
| C．shouldn’t | D．mustn’t |
Thank you for all your hard work last week. I don’t think we ____ it without you.
| A．can manage | B．could have managed |
| C．could manage | D．can have managed |
_______ he had not hurt his leg, John would have won the race.
| A．If | B．Since | C．Though | D．When |
If it were not for the fact that she_______sing, I would invite her to the party.
| A．couldn’t | B．shouldn’t | C．can’t | D．might not |
__________ fired, your health care and other benefits will not be immediately cut off.
| A．Would you be | B．Should you be | C．Could you be | D．Might you be |