To her ________，the salesgirl still helps thatold lady.

We didn’t enjoy the day the weather was so bad.

The sweater is too expensive. Could you show me a ___ one，please

It still puzzles today’s scientists_____ some mammals produce their young _____others lay eggs to producetheir offspring (后代)[ ]

To our surprise, though _____ natural resources, the area is well developed. [ ]