Policeare________thedisappearanceoftwochildren.
C
A (在书中)查找 B 仔细查阅，审查， (对某人)视而不见 C 调查，研究，查问 D. 观看，旁观，看待
Weweretoldthatthestonefigure_______backtothe16thcenturywasofgreatvalue.
Which of the following is NOT one of the extra-linguistic factors that cause changes in meaning?
—David has made great progress recently. — _______，and _______.
The Indo-European language family is made up of the languages of the following EXCEPT ______ .