—Why didn’t Tom go to the concert last night ? — I have no idea, but I think he _____ in his study.
A. read B. have read
C. was reading D. would read
Being examined twice a year is the rule that every driver _____ obey in this city.
A. shall B. can C. ought to D. need
I’m calling to ask for information about the position____ in the local TV news.
A. advertising B. advertised
C. having advertised D. to advertise
It has been proved ____ several new kinds of medicine____ a positive effect on the cure of H7N9.
A. which，has B. if, has
C. that, have D. what, have
It was the middle of the night_____ my father woke me up and told me to watch the football game.
A. that B. as C. which D. when
近年来媒体不断报道一些商家为了获取商业利益生产制造一些对人体有害的食品。请你以此为话题，给一家英文报刊写封信，谈谈你对食品安全的看法。信的内容应包括以下要点：
1. 食品安全问题屡次发生的原因。（利益、道德、法律等方面）
2. 减少此类事件发生的措施。（对企业的法律监管，提高防范意识等）
要求: 1.书写工整，卷面整洁；
2. 词数不少于120个，开头和结尾都已给出，不计入总词数。
提示词汇：food safety；producer
Dear sir,
Yours,
LiHua
