I smell something __________ in the kitchen. Can I call you back in a minute?
| A．burning | B．burnt | C．being burnt | D．to be burnt |
Is this research center ________ you visited the modern equipment last year?
| A．where | B．that | C．the one that | D．the one where |
The humans are destroying nature day by day, ________ of course, will cause severe punishment from it sooner or later.
| A．who | B．when | C．on which | D．which |
The people, ________ had been damaged by the flood, were given help by the Red Cross.
| A．all whose homes | B．all of whose homes | C．all their homes | D．all of their homes |
There is no such place ________ you dream of in all this world.
| A．that | B．what | C．which | D．as |
The bread my wife makes is much better than ________ you can buy at a store.
| A．that which | B．one that | C．that of which | D．this of which |