____ I’ve known your situation, I’ll send the money to you imediately.
| A．Now that | B．In case | C．On condition that | D．So long as |
While _________the topic of music in class, all the students show great interest in it.
| A．discussed | B．discuss |
| C．discussing | D．are discussing |
Please wait a minute, honey! I _______ my work.
| A．have finished | B．am finishing |
| C．finished | D．finish |
Great changes _________ in many fields since China was open to the whole world.
| A．have taken place | B．took place |
| C．have been taken place | D．were taking place |
_____you’ve made a promise, you are expected to carry it out.
| A．While | B．Unless |
| C．Once | D．Though |
His parents insisted that he __________English well when he was in junior school.
| A．would learn | B．must learn |
| C．learned | D．learn |