___ with all the difficulties, he never gave up.
| A．Faced |
| B．Facing |
| C．Being faced |
| D．Faced himself |
It was only after he had read the papers Mr. Gross realized the task before him was difficult to complete.
| A．when | B．that | C．which | D．what |
—Did you enjoy yourself last night?
—Yes, it’s very nice of you. I appreciated to your birthday party.
| A．to be invited | B．to have invited |
| C．having invited | D．being invited |
Believe it or not, Lucy’s sister suddenly tears when we were eating.
| A．burst out | B．burst in |
| C．burst into | D．burst on |
basic fist-aid techniques will help you respond quickly to emergencies.
| A．Known | B．Having known |
| C．Knowing | D．Being known |
The reason he gave for his absence was made up by his elder brother. In fact, the reason he was absent is he went to the zoo.
| A．which; because | B．why; that |
| C．for which; because | D．that; for which |