Jenny is always absent from school, I suppose is why she is criticized now and then.
| A．who | B．which | C．that | D．what |
Betty always tells lies，___ her parents find strange.
| A．that | B．/ | C．which | D．as |
____ we know now, oceans cover more than 70 percent of the earth.
| A．That | B．Which | C．As | D．What |
We must teach her a good lesson ___ she likes it or not.
| A．whether | B．if | C．that | D．which |
We don't know ___ to pay a visit to the old town.
| A．whether | B．if | C．that | D．which |
The question __ we will hold the sports-meet next Sunday will be decided very soon.
| A．that | B．whether | C．if | D．why |