—I have telephoned him twice but I couldn’t get through.
—I think that the line _____ be being worked on today.
| A．should | B．might | C．need | D．would |
David threatened ________his neighbor to the police if the damages were not paid .
| A．to be reported | B．reporting | C．to report | D．having reported |
The government insists that the dam will not do any ________to the environment .
| A．reserve | B．application | C．bargain | D．harm |
I would ________it if you would let me deal with this by myself .
| A．appreciate | B．inspect | C．protecct | D．replace |
On the floor lay four or five boxes _______toys and books .
| A．decreasing | B．empolying | C．containing | D．affecting |
To their ________,someone had found the keys and handed them in .
| A．mercy | B．incident | C．attention | D．relief |