·______down the radio ______ the baby's asleep in the next room．
| A．Turning | B． To turn | C．Turned | D． Turn |
Listening to loud music at rock concerts ______caused hearing loss in some teenagers.
| A．is | B．are | C．has | D．have |
People from the West like to use such expressions as “please” and “thank you” in cases ______ some people in Asia may not think it necessary.
| A．what | B．which | C．that | D．where |
______ has passed the test will get a prize.
| A．Whoever | B．No matter who | C．Whomever | D．Who |
The question came up at the meeting_____ we had enough money for our research.
| A．that | B．which | C．whether | D．that if |
I hate _____ when people talk with their mouths full.
| A．it | B．that | C．these | D．them |