My father stayed in Japan only a few months，_______ he went through a series of hardship.
| A．during which time | B．in time of which | C．where | D．whenever |
Don’t come and see me today – I’d rather you ____ tomorrow.
| A．to come | B．come | C．came | D．coming |
It is clear that your ____ English will greatly improve if you can practice ____ wherever you can.
| A．speaking; speaking | B．speaking; spoken |
| C．spoken; speaking | D．spoken; spoken |
This means going back to the place where we left the family ____ in a tree the night before.
| A．to sleep | B．to be sleeping | C．slept | D．sleeping |
Most birds find it __
__ to sleep in the trees.
| A．was safe | B．safe | C．to be safe | D．being safe |
The children talked so loudly at dinner table that I had to struggle ____.
| A．to be heard | B．to have heard | C．hearing | D．being heard |