Glasses are __and must be handled with great care.

Studies have shown that 45 percent of reptile species and 24 percent of butterflies in these countries are in danger of ________.[ ]

________you may have，you should gather your courageto face the challenge.

I’m very nervous before tests.-_____.You can do it well.

He has a lot of friends who have a lot in ________ common with himself.—Indeed.Birds of ________ feather flock together.