Butterflies ________ a sweet liquid produced by flowers, which bees and other insects collect.

—Your sitting room looks so clean and tidy.
—Well, thanks to the baby­sitter. She is a real ________.

Many dog owners treat their pets like human beings, ________ if they do not have children of their own.

(2013·乌鲁木齐高三第一次诊断性测验)Yesterday, I came across my former classmate, but his name ________ me, which made me embarrassed.

Barbara has worked here for three years, so I’m sure she’s quite ______ to the task.

----Did the reference give the information you needed?
----Yes, but            it, I had to read it entirely.

By the time Mr Wang returned home from Beijing, his son's wedding _______.

_______, I don’t like him at all, but it’s strange that he should be so popular among the kids.

_____such an embarrassing situation, he didn’t know what to do.

Haven’t you enough common ________ to know that it is unwise to go outside in such a hazy (雾霾的) day? You may get lost.