I’ll spend as much time as I can ____ after the flowers in the garden.

nows nothing about it, so he can’thelp _______ any of your work.

________ people go abroad, they have to bring their passports with them.

Tom was Mary’sbrother! ________ he reminded me so much of Mary.

People should stop pouring dirty water into thelake.— _______. It will cause pollution.