Ted came for the weekend wearing only some shorts and a T-shirt，__________ is a stupid thing to do in such weather.
| A．this | B．that | C．what | D．which |
Do you know the year ________ the Chinese Communist Party was founded?
| A．which | B．that | C．when | D．on which |
This is the hotel ________ last month.
| A．which they stayed | B．at that they stayed |
| C．where they stayed at | D．where they stayed |
Do you know the man ________？
| A．whom I spoke | B．to who spoke |
| C．I spoke to | D．that I spoke |
The place ________ interested me most was the Children's Palace.
| A．which | B．where | C．what | D．in which |
Occasions are quite rare ________ I have the time to spend a day with my kids.
| A．who | B．which | C．why | D．when |