To improve the quality of our products, we asked for advice had used the products.
| A．which | B．who | C．whichever | D．whoever |
The waiting lists for a bed in a public elderly care home in Beijing have grown ________ long that some are saying it could take 100 years to get a position.
| A．very | B．too |
| C．quite | D．so |
We could not reason out the way the robbers escaped，because we were unable to find any ________ of them.
| A．chance | B．trace |
| C．point | D．signal |
—We are going to be late, Mary. Do you have the time?
—________.
| A．Yes，I do. | B．Don't worry. |
| C．Five to eight. | D．No, I'm busy. |
Everybody knows about it now! But no one knows ________ once prevented the rumor from spreading.
| A．what was it that | B．what it was that |
| C．how it was that | D．why it was that |
Programs，________to join the old and the young together, are growing in popularity all over the world.
| A．designed | B．to be designed |
| C．designing | D．having designed |