Three-fourths of the buildings ______.
| A．was destroyed | B．is destroyed |
| C．were destroyed | D．has been destroyed |
I’m progressing in physics ____ the teacher’s well-organized teaching and exact explanation．
| A．because | B．as a result | C．as | D．as a result of |
She said the fun of reading books was different from ___ of any other kind．
| A．one | B．that | C．it | D．those |
---Would you mind me opening that door?
---_____ , but it’s not allowed．
| A．Yes, I do ． | B．Of course． | C．Not at all． | D．I’m sorry． |
The roads are crowded _____ walking is quicker than driving．
| A．in order that | B．so that | C．so as to | D．in order to |
---Did your car break down again this morning?
---Yes．That’s ____ I was late．
| A．why | B．because | C．how | D．for |