If you really have to leave during the meeting, you’d better leave _________ the back door.
| A．for | B．by |
| C．across | D．out |
The Smiths went to the country for the weekend as they ______ to the office.
| A．needn’t have gone | B．mustn’t go |
| C．may not go | D．didn’t have to go |
She thought I was praising her child，_____，in fact，I was scolding him for his bad behaviors at school.
| A．what | B．while | C．so that | D．therefore |
—Your mother becomes more and more forgetful.
—Yes. She searched for her cellphone for a whole day last Sunday but it ______ in her coatpocket the next day.
| A．turned out | B．turned on | C．turned over | D．turned up |
— My cat’s really fat.
— You ______ have given her so much food.
| A．wouldn’t | B．couldn’t | C．shouldn’t | D．mustn’t |
— How about Christmas evening party?
— I should say it was success.
| A．a; a | B．the; a | C．a; 不填 | D．the; 不填 |