could I hand in my homework a bit late—– __________, since you’ve been unwell these days.

What do you think of the film Inception (盗梦空间)? — Just so-so. I don’t think it worth _____ a second time. [ ]

He should________his attention________the main problems. [ ]

Never shall I forget the mountain village ____ I spent my summer holiday last year. [ ]

Why hasn’t Mr. Li come to work yet —Because he _______Guangzhou for a holiday.