---I hear Jack Chan will come to Zhengzhou next week.
---Really? _______ he comes, my younger sister will be very happy,
| A．If | B．Until |
| C．Unless | D．Before |
It was so noisy that we couldn’t hear ______ speak.
| A．myself | B．yourself |
| C．ourselves | D．yourselves |
Tina usually spends time ______ her parents ______ weekends.
| A．in; on | B．with; on |
| C．in; with | D．with; with |
It was not very warm ______ the sun came out.
| A．although | B．because |
| C．so | D．but |
The number 6,743,234,123 is read ____ .
| A．Six billion, seven hundred and forty-three million, two hundred and thirty- four thousand, one hundred and twenty-three |
| B．Six billion and seven hundred and forty-three million and two hundred and thirty four thousand and one hundred twenty-three |
| C．Six billion and seven hundred and forty-three million and two hundred and thirty four thousand and a hundred and twenty-three |
| D．Six billions, seven hundreds and forty-three millions , two hundreds and thirty -four thousands a hundred and twenty-three |
I ____ my clothes when my father got home.
| A．wash | B．washed |
| C．am washing | D．was washing |