Darwin counted 225 flowering plants, ________ he collected and brought home 193.
| A．that | B．in that | C．of which | D．all of which |
This type of MP5 is my favorite, but I can’t it.
| A．afford | B．spend | C．cost | D．pay |
— Is that our math teacher?
— It be him. He has gone to London.
| A．can | B．may | C．mustn’t | D．can’t |
— How clean the classroom is!
— Yes, I am sure someone it.
| A．has cleaned | B．cleans | C．cleaned | D．had cleaned |
We will go to visit the Great Wall it rains tomorrow.
| A．if | B．as | C．because | D．unless |
— Do you enjoy your present job?
—. I just do it for a living.
| A．Of course | B．Not really | C．Wonderful | D．Well done |