Ex1:chọn đáp đúng và giải thích 1) I can't use my printer now because it's..........repair. A. for B under C. during D. in 2) Mr John is responsible ...........hiring and firing employess. A. with B.by C. to D. for 3) this medicine will protect you..........a return of the illness. A. of B. from C. to D. at Ex2: 1) Hazel is reading a novel written by Peter van Houten. It's very interesting. -> The novel .......................................................... 2) "Was it Charlotte Bronte, Jane Austen or Thomas Hardy that first made you fall in love with literature?" Christian asked Anna. -> Christian asked Anna whether ..........................................