中學生世界九年級英語滬教版54制
注：當前書本只展示部分頁碼答案，查看完整答案請下載作業(yè)精靈APP。練習冊中學生世界九年級英語滬教版54制答案主要是用來給同學們做完題方便對答案用的，請勿直接抄襲。
One day when I came home, Shadow didn't show up to greet me. I soon learnt that Shadow was sick.
Since
it was suffering from heart failure, we took it to the animal clinic immediately.
Then one day, the vet called us that Shadow had passed away. On hearing the news, I cried my heart out.
No other pet has ever been able to
replace
my beloved Shadow since then.
答案：5. Since
解析：根據(jù)語境“因為它患有心臟病，我們立刻帶它去了動物診所”，since表示“因為，既然”，所以填Since。
6. replace
解析：根據(jù)語境“沒有其他寵物能取代我心愛的Shadow”，replace意為“取代”，be able to后接動詞原形，所以填replace。
