我们需要很多帮手 (helper)，如医生和老师。 A: We need a lot of helpers, e.g. doctor and teacher. B: We need a lot helpers, e.g. doctors and teachers. C: We need many helpers, e.g. doctors and teachers.

Human beings can be addicted to: A: internet B: alcohol C: drug (e.g. opiate) D: all the above

2. 我们需要很多帮手,如医生和老师。(2.1) A: We need some help, e.g. doctors and teachers. B: We need many helpers, e.g. doctors and teachers. C: We need a lot of helpers, e.g. doctor and teacher.

Which of the following is not an achievement made in China's HIV/AIDS prevention and control? A: HIV transmission in blood supply or blood transfusion is effectively controlled B: HIV infection rate of drug users in China drops year by year C: Rate of mother-to-infant transmission of HIV virus in China dropped from 35% to 6% D: Most HIV-infected people received effective treatment, and their mortality after treatment significantly lowered E: China still has a high HIV prevalence

Which of the following is the meaning of 'broadcast'? A: a document that is distributed to a group, e.g. a press release, an advertisement, or material accompanying a meeting or lecture B: a programme on the radio or on television C: a piece of paper with information on it that is given to everyone in a group, especially a class of students D: something given as charity to somebody in need, e.g. money or food