Zhang Heng, one of _____ best-known Chinese astronomers, showed a strong interest in _____ astronomy as a child.
| A．the; the | B．the; 不填 | C．不填; the | D．不填; 不填 |
I had no idea of the exact address of Xinhua High School ________I was outside its front gate.
| A．when | B．after |
| C．until | D．because |
John plays basketball well，________ his favorite sport is badminton.
| A．so | B．or | C．yet | D．for |
________tomorrow，our ship will set sail for Macao.
| A．However the weather is like |
| B．However is the weather like |
| C．Whatever is the weather like |
| D．Whatever the weather is like |
If you are traveling ________ the customs are really foreign to your own，please do as the Romans do.
| A．in which | B．what |
| C．when | D．where |
Find ways to praise your children often，________ you’ll find they will open their hearts to you.
| A．till | B．or | C．and | D．but |