I think you can ________ moneyby yourself to buy a birthday present for your mother. —OK. I’ll try. I’llnot let a penny waste.

Tu Youyou won Nobel Prize in Medicine for her discoveries that helped doctors fight malaria and _______ caused by roundworm parasites.

98 You can go swimming on _____ that youdon’t go too far from the river bank

Changing the design of a new product may ____ the riskof its production in the market．

nothing on me except one dollar todonate, I’m afraid.– Never mind. _________. We really appreciate yourassistance.