13. There are many popular Alien movies, ______ a monster lays an egg inside a human being. (A) what (B) that (C) in which (D) when

22. Why would business in night markets be hit hard? (A) Clouding agents are used as a food additive in fruit juice. (B) The authorities are trying to carry out the inspection of products. (C) Food products are possibly tainted by DEHP. (D) The certificates will not be issued.