“How long will you work on the farm?” “____ the end of next year.”
| A．In | B．By |
| C．At | D．Since |
It is reported that a space station ______ on the moon in years to come.
| A．will be building | B．will be built |
| C．has been building | D．has been built |
Some experts think reading is the fundamental skill upon______school education depends.
| A．it | B．that | C．whose | D．which |
the difference between the two research findings will be one of the worst mistakes you make.
| A． | Ignore | B． | Ignoring |
| C． | Ignored | D． | Having ignored |
I'm soto all those volunteers because they helped my terrible day end happily.
| A． | special | B． | superior | C． | grateful | D． | attractive |
A ship in harbor is safe, but that’s not ______ ships are built for.
| A．what | B．whom | C．why | D．when |