______ you say sorry to your uncle, he won’t forgive you.
| A．Although | B．Unless | C．If | D．Since |
— Can you tell me to America?— Sure． Next month．
| A．when you will travel | B．when will you travel |
| C．when you travelled | D．when did you travel |
Our new school last year．
| A．builds | B．built |
| C．was built | D．is built |
We in the same school since three years ago．
| A．have studied | B．were studying |
| C．will study | D．study |
— What are the neighbours doing, Joe?
— Oh, they _______ a party．
| A．have | B．had |
| C．are having | D．have had |
— Jack, can you play the guitar?
— Yes, I _______．
| A．must | B．can | C．need | D．may |