Nobody knows _______broke into the house last night and stole the important papers.
| A．who was it that | B．it was who that | C．who it was that | D．that it was who |
Not until midnight______back from work, drunken .
| A．he did come | B．he came | C．didn't he come | D．did he come |
—Well, I do think the iPod is a smart, convenient and intelligent.
—________.
| A．So it is | B．So is it |
| C．So does it | D．So it does |
So difficult____it to acquire a large vocabulary without the help of a teacher that he was close to giving up .
| A．he have felt | B．have he felt |
| C．he did feel | D．did he feel |
_____，I can’t express myself in words.
| A．So long as I am fond of | B．Now that I am fond of |
| C．Much as I am fond of her | D．As I am fond of very much |
___ ____ I passed the interview!
___ Good luck to you. next time!
| A．If only | B．Only if | C．If | D．When |