【单选题】–Can you come on Monday? –No, I am_______.
【单选题】下列对线粒体和叶绿体的叙述中,正确的是 ①都能把无机物合成有机物 ②都是与能量转换有关的细胞器 ③都能够为各种生命活动提供直接能源 ④都含有少量的DNA ⑤都能够合成自己的蛋白质 ⑥都不受细胞核的控制 [ ]
【单选题】—Can you come on Monday or Tuesday? —Im afraid________ day is possible.
【单选题】---Can you come on Monday or Tuesday, Scott? ---I’m afraid_____ possible. I’ll be on business on those two days.
【单选题】— Can you come on Friday or Saturday? — I’m afraid ______ is possible.I will go to the hospital to look after my friend.
【单选题】– Can you come on Monday or Tuesday? -- I’m afraid day is possible.