______ the employees’ working efficiency, the supervisor will allow them to have a coffee
break.
| A．Improving | B．To improve | C．Having improved | D．Improved |
Peter, I’m really grateful to you. Your advice is much more useful for me than ___ given by Mike.
| A．the one | B．it | C．those | D．that |
. The ______ house is his.
| A．new-built | B．newly-built | C．new-building | D．newly-building |
–Shall we meet at 6:00 or at 6:30?
-__________.
| A．At any time. | B．Yes, at 6:30. |
| C．Well, either time will do. | D．Any time is OK. |
. The question came up at the meeting ______ we had enough money to do it.
| A．whether | B．that | C．if | D．what |
. His suggestion will be _____ to us.
| A．of helpful | B．very help | C．of great benefit | D．of very use |