单项选择题
A．He needs a vehicle to be used in harsh weather. B．He has a fairly large collection of quality trucks. C．He has had his truck adapted for cold temperatures. D．He does routine truck maintenance for the woman.
A．They will be de-nationalised. B．They are fast disappearing. C．They provide worse service. D．They lose a lot of money.
A．They could enjoy a happier family life. B．They could greatly improve their work efficiency. C．Many cancer cases could be prevented. D．Many embarrassing situations could be avoided.