Only when their children leave home _________.
| A．many parents did feel a sense of loss | B．did many parents feel a sense of loss |
| C．did feel many parents a sense of loss | D．do many parents feel a sense of loss |
They have discussed for several years of drafting a new law to control the pollution, but when it will be is still unknown
| A．put to use |
| B．put into effect |
| C．put into operation |
| D．put forward |
disappointed his parents was he didn’t pass the examination
| A．That; what |
| B．That; which |
| C．Which; that |
| D．What; that |
For all these years I have been working for others. I’m hoping I’ll my own business someday.
| A．turn up |
| B．fix up |
| C．set up |
| D．make up |
We are going to have a party in celebration of Tom’s birthday this weekend and your coming will our pleasure.
| A．add up to |
| B．add |
| C．add up |
| D．add to |
My visits will encourage people _the project to devote themselves to it.
| A．work on |
| B．working on |
| C．being working |
| D．work |