It wasn’t until a month later ____ I received his letter.
| A．that | B．since | C．when | D．as |
The program was so exciting that the children kept their eyes _____ on the screen.
| A．to fix | B．to be fixed | C．fixed | D．fixing |
The monument was built in honor of the explorer who was believed _____ the river.
| A．to have discovered |
| B．to have been discovered |
| C．to discover |
| D．having been discovered |
It was getting dark; I found a car _____ in a pool by the side of the road.
| A．to be stuck | B．stuck | C．sticking | D．stick |
The old farmer, _____ the badly injured and burnt soldier, came out of the burning farmhouse, calling continuously for help.
| A．supporting | B．having supported |
| C．being supported by | D．being supported |
To answer correctly is more important than _____.
| A．that you finish quickly |
| B．finishing quickly |
| C．to finish quickly |
| D．finish quickly |