The naughty boy was muddy because he _______ soccer in the rain all afternoon.
| A.has been playing | B.had played | 
| C.had been playing | D.was playing | 
— I'd rather go to the Blue Moon Restaurant because I prefer soft music while eating.
  — _________ Loud music makes me tense.
| A.My pleasure. | B.How so? | C.At your service. | D.Me too! | 
— You can't finish the book in less than an hour,I suppose?
 — ____.
| A.Yes, I'm sure I can | B.No, hardly | 
| C.Sorry, I can't | D.I don't think I can | 
1. We had ___________ wonderful time_________the party_______ other day.
| A.a,on,the | B./,at,on | C.a,at,the | D./,on,/ | 
What he said didn’t mean to hurt Mary, but he felt ________ it differently.
| A.he could express | B.he could have expressed  | C.he would express | D.he must have expressed  | 
If we expect ________ much cleaner world, we should attract ________world’s attention to protect the world.
| A.a; a | B.a; / | C.a; the | D.the; /  |