My necklace is not the only thing______is missing.
A．that B．/ C．which D．who
I like to visit a place______history is long.
A．which B．that C．whose D．who
Jack spends much money on books____ he is not so rich.
A．though B．when
C．if D．because
—Do you know if we will go to the cinema tomorrow?
— I think we’ll go if we______too much homework.
A．will have B．have
C．won’t have D．don’t have
I haven’t heard from Bill ______he left here.
A．when B．before C．since D．while
I won’t believe that five-year-old boy can read five thousand words_____I have tested him myself.
A．after B．when C．if D．until
