Officials believe that more than one person _____ for the big fire.
| A．is to be blamed | B．should blame | C．should be blaming | D．is to blame |
--- How long has this bookshop been in business? --- _________ 1985.
| A．After | B．In | C．Since | D．From |
Helen said that they ________ for 3 years.
| A．had married | B．married | C．had been married | D．had marriage |
I was about to go to bed _____ someone knocked at the door.
| A．when | B．then | C．at the time | D．and |
I’ll give the diamond to _______ needs it.
| A．whoever | B．anyone | C．no matter who | D．those who |
The young couple came to the ball without ___________.
| A．being invited | B．inviting | C．been invited | D．invite |