【单选题】Don’t disturb me. I_______ letters all morning and have written ten so far.
【单选题】A1 题型】 关于医院内感染的概念,正确的是
E.
入院前处于潜伏期而住院期间发生的感染也属于医院内感染
【单选题】– Shall we go out for lunch? – Don’t disturb me. I ______ the letters all morning and ______ six so far.
D.
have been writing; have written
【单选题】Don’t disturb me. I ___________ letters all morning and have ten so far.
【简答题】Don’t disturb me. I ______ letters all the morning and have written ten so far. A.write B.was writing C.have written D.have been writing