__________ , some students tend to develop a range of unhealthy habits .
| A．Parents don’t watch over them | B．Not having watched over |
| C．With no parents to watch over them | D．Parents watched over |
—Would you tell meyou want your tea , with sugar or milk ?
—Sugar , please .
| A．whether | B．when | C．what | D．how |
He seems too tired today, and I wonder he got a good sleep last night.
| A．when | B．that | C．if | D．where |
________ people with mental－health problems want most of all is a more equal and open working culture.
| A．That | B．What | C．When | D．All what |
We agreed to accept they thought was the best professor in the college .
| A．Whatever | B．whomever | C．whichever | D．whoever |
The traveler lost his way in the woods, and made things worse was that it was getting dark.
| A．that | B．what | C．which | D．as |