We human beings should be very careful with what we do with nature, _____power is beyond our understanding.
| A．that | B．which |
| C．whose | D．where |
______ the instructions very carefully when filling in the form.
| A．Following | B．To follow |
| C．Follow | D．Followed |
The school had promised to keep parents fully _____ about the conditions of their children at school.
| A．inform | B．informing |
| C．informed | D．being informed |
I send you my revised catalogue and price list, ______ you may find something that suits you.
| A．to hope | B．hoping |
| C．hoped | D．hope |
When he came back, he found his bag over the seat.
| A．hanging | B．to hang |
| C．hung | D．being hung |
—How did he break his head while swimming?
— my warnings, he dived straight into the shallow water.
| A．To ignore | B．Ignored |
| C．Ignoring | D．Being ignored |