29. ____ time and labour, you should join hands ____ him in the business.
| A．To save; with | B．Saved; with  |
C．Saving; with | D．Having saved; by |
School children must be taught how to deal with dangerous ________.
| A．states | B．conditions | C．situations | D．positions |
—I don’t think the company may offer you a good pay.
—__________，I won’t take the job.
| A．That is to say | B．You mean | C．In other words | D．In that case |
---We got here Tuesday afternoon.
---__________Why didn’t you call us earlier?
| A．Good luck. | B．You did? | C．It’s no surprise | D．Go ahead. |
Ordinary woman though she is, she had won the award because she tries every means to make people _________ of the importance of the environment conservation.
| A．aware | B．careful | C．sensible | D．awesome |
It has been announced that all the candidates______ remain in their seats until all the papers have been collected.
| A．can | B．will | C．shall | D．should |