A place for users of English as a second language
Daily Challenge
Fill the gaps with a form of the verb given at the end of each sentence.:
12. Scientists . . . . . the phenomenon early last century. (discover)
From: Verb Phrase 71.a (Intermediate)
Daily Challenge
Fill the gaps with a form of the verb given at the end of each sentence.:
12. Scientists . . . . . the phenomenon early last century. (discover)
From: Verb Phrase 71.a (Intermediate)