下列物质分别放入一密闭的充满氧气的集气瓶里，充分燃烧后，冷却至室温，由于瓶内压强明显减小，使瓶塞最难开启的是 （ ）
The boy ________ be Tom. I saw him reading in the library just now.
shouldn’t
can’t
needn’t
—How do you like this cup of Xinglong Coffee?
—It ________ really great. I’d like another cup.
looks
feels
tastes
To keep ________ safe, you’d better not go out alone at night.
myself
herself
yourself
—What do you usually have ________ breakfast?
—Hainan noodles.
with
for
by
I got a dog yesterday as a birthday gift. ________ dog is very cute and I like it.
The
/
A
物质分别放入一密闭的充满氧气的集气瓶里，充分燃烧后，冷却至室温，由于瓶内压强明显减小，使瓶塞最难开启的是 （ ）
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