We used to see each other ______,but I haven’t heard from him since last year.
Book three is ______ most difficult book,but is isn’t ______ most difficult one in Senior school books.
.—How do you like the address Hu Jintao delivered at the Asian APEC in 2009? —Great. I takethat he spoke of the physical security measures.
.How long do you think ______ will take to complete the sports center?
.I’m told we have taken effective measures we can against the painting ______.
.All hope of finding the missing plane ______, the relevant authorities declared the crew and passengers ______.