Never before______ such a wonderful park, ______ I'd like to pay a visit again.
| A．had I seen; where | B．have I seen; which |
| C．have I seen; where | D．had I seen; which |
Do you have any idea _______ is actually going on in the classroom?
| A．that | B．what | C．as | D．which |
Mary wrote an article on _______ the team had failed to win the game.
| A．why | B．what | C．who | D．that |
Doris' success lies in the fact _______ she is co-operative and eager to learn from others.
| A．which | B．that | C．when | D．why |
See the flags on top of the building? That was _______ we did this morning.
| A．when | B．which | C．where | D．What |
_______ makes his shop different is that it offers more personal services.
| A．What | B．Who | C．Whatever | D．Whoever |