Simple past or present perfect? - Grammar short lessons - 2014 -
This grammar exercise tests your understanding of past simple and present perfect tenses. Complete the following sentences using an appropriate tense form. Each question is followed by two suggested answers. Choose the most appropriate one.
Introduction to noun clauses - Grammar short lessons - 2014 -
A noun clause is a group of words that contains a subject and a verb. It acts as a noun. Note that a noun clause cannot stand alone. It is a subordinate clause and it needs to be attached to an independent clause.
A noun clause can be the subject or object of the verb in the main clause...