A．They think the housing price will be higher．
B．They think taxes and insurance are affordable．
C．They think it is too expensive to rent a house．
D．They think it is a reasonable investment．

A．The number of people relying on their mother tongue will drop．
B．The percentage of native speakers of English will increase．
C．People will choose Chinese rather than English．
D．People may use two or more languages．

A．The number of Spanish speakers is far greater than that of Arabic speakers．
B．Arabic spoken in Egypt differs from Arabic spoken in Morocco in origin．
C．Arabic spoken in one Arab country may not be understood in another．
D．The number of Arabic speakers is declining because of the invasion of English．