Products made in this factory ____ well; they have sold ___all their products.
| A．sell; out | B．are sold; over | C．sell; off | D．are sold; away |
--- How about _________ Christmas evening party?
__ I should say it was __________ success．
| A．a; a | B．the; a | C．a; / | D．the; / |
---Lost and Found office. ________?
--- I wonder if you have a small black suitcase of mine.
| A．What can I do for you | B．Who’s that |
| C．What’s that | D．How do you do |
So far all cloned animals have suffered from some different serious disorders, _______ dying soon after birth.
| A．many of which | B．many of whom | C．many of them | D．many of that |
When asked to explain ________ he does to make his students so fascinated with his lessons, the teacher paused and thought deeply.
| A．what it is that | B．that what it is |
| C．what is it that | D．that what is that |