Trinity ISE English Usage Practice — All Questions

The scientist's ___ changed the way we understand the disease. Which form is correct?

• a.discover
• b.discovered
• c.discovery✓
• d.discovering

After the possessive 'scientist's' a noun is needed, and 'discovery' is the noun. 'Discover' is a verb and 'discovering' is a participle.

The children behaved ___ during the entire school trip. Which form is correct?

• a.responsible
• b.responsibly✓
• c.responsibility
• d.response

The blank describes how the children behaved, so an adverb is needed: 'responsibly'. 'Responsible' is an adjective and 'responsibility' a noun.

It was an ___ decision that no one had planned in advance. Which form is correct?

• a.expect
• b.expectation
• c.expectedly
• d.unexpected✓

Before the noun 'decision' an adjective is needed, and the meaning 'not planned' calls for 'unexpected'. 'Expect' is a verb and 'expectation' a noun.

The council hopes to ___ the old library and reopen it next year. Which form is correct?

• a.strengthen✓
• b.strength
• c.strong
• d.strongly

After 'to' a base verb is needed, and 'strengthen' means to make stronger. 'Strength' is a noun, 'strong' an adjective, and 'strongly' an adverb.