—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.

Though you've got a tight schedule these days, I should be ________ if you could spare time to attend our meeting today.

The newcomer is quite ________ to office work.Why not offer her some practical tips?

________ his strength failed and he dropped behind in the race.

—Do you believe that opportunities always ________ the prepared minds?
—I couldn't agree more.

Good shoes, clothes and a backpack are the basic ________ you need for your hiking.

Yesterday, I came across my former classmate, but his name ________ me, which made me embarrassed.

The US military is in _______ control of the entire region.

The professor stressed the new medicine would _______ shorten the treatment period from the current  days to a minimum of four days.