28. ____, he sometimes makes mistakes.
| A．Though he is careful teacher | B．As he is careful |
| C．A careful teacher as he is | D．Being a careful teacher |
It is generally considered unwise to give a child _____________ he or she wants.
| A．however | B．whatever | C．whichever | D．whenever |
. _____________ we’ll go camping tomorrow depends on the weather.
| A．If | B．Whether | C．That | D．Where |
____________ we can’t get seems better than ____________ we have.
| A．What; what | B．What; that | C．That; that | D．That; what |
Sarah hopes to become a friend of _____________ shares her interests.
| A．anyone | B．whomever | C．whoever | D．no matter who |
_____________ is a fact that English is accepted as an international language.
| A．There | B．This | C．That | D．It |