Directions: Below are sentences that talks about the properties of materials whether they are
useful or harmful. Encircle the subject used in each of the sentences and underline the correct
verb that agrees to the subject.
1.
Insecticides (is, are) good for gardening. However, chemicals like this (become, becomes)
harmful when ingested, inhaled or exposed excessively to humans.
2.
Detergents and soaps (is, are) cleaning agents found in the kitchen and they (help, helps)
us everyday to disinfect us especially from viruses like Corona Virus.
3.
Liquefied Petroleum Gas (LPG) (is, are) very useful item found in our kitchen. This
(enable, enables) some people to cook their food.
4.
Hazardous or harmful materials should be stored very well. Warning labels (is, are) mostly
found in every product. These labels (keep, keeps) us reminded of the safety measures on
how to use or dispose them.
5.
A material can be found useful and harmful at the same time. The danger (lie, lies) on
how we use these materials properly. We (stay, stays) away from danger when we are
careful.​