---You have tried on several shirts.
---Sorry to take up too much of your time. But __________ of them look good on me.
| A．neither | B．any | C．none | D．both |
She has studied in this school she was seven years old.
| A．since | B．if | C．until | D．after |
The Great Wall is famous lots of visitors all over the world come to visit it every year.
| A．so; that | B．such; that |
| C．enough; that | D．very; that |
__________ it’s very difficult, remember not to give up until the last minute.
| A．Until | B．Unless | C．Although | D．Since |
You will never know the result ______ you try it by yourself.
| A．when | B．if | C．unless | D．after |
________ he told the truth this time, nobody was willing to believe him because he often told lies.
| A．When | B．Because | C．Although | D．Unless |