House prices vary from place to place and are usually high _____ there are famous schools.
A.where B.since C.when D.whether
—Have you received your new shoes?
—Yes. And at the same time I got the jacket I _____.
A.had ordered B.ordered C.have ordered D.order
As the intelligence of robots increases to match ________ of humans,we may use them to expand our frontiers.
A.it B.that C.which D.the
Experts believe that language learning is a process ______ skills are more important than grammar rules.
A.whose B.when C.of which D.in which
The warning of the storm, ______ over the radio and on TV, spread quickly through the province.
A.broadcasting B.having broadcast C.broadcast D.to be broadcast
24. Not until I completed the form______ that half questions were not relevant to me.
A.hadIrealized B.Ihadrealized C.Irealized D.didIrealize