My brother was playing with his friends in a wildlife park________she was bitten on the leg by a lion.
| A．when | B．while |
| C．since | D．once |
Luckily, the people there did ______ help him.
| A．that they could | B．which they could to | C．what they could | D．what they could to |
—Jane and July are here. Did I introduce them to you?
—No，you didn’t. I’ve seen them，but we__________.
| A．hadn’t been introduced |
| B．haven’t been introduced |
| C．weren’t introduced |
| D．didn’t introduce |
I can never forget the days _____ we worked together and the days ______ we spent happily together.
| A．when; which | B．which; when | C．for which; that | D．on which; when |
There are six boys and two girls in the classroom; that’s eight _______.
| A．at all | B．in all | C．after all | D．above all |
Who is that young woman ______ is standing over there?
| A．whom | B．that | C．which | D．who |