1. Write the adjective forms of:
(a) infection
(b) office.
2. Pick out the verbs and state the tense.
(a) Stephen Hawking has continued to write at a prolific rate.
(b) He had already announced he was retiring.
3. He failed to appear at a conference. (Rewrite using ‘not’.)
4. Pick out the prepositions
(a) Hawking directs the program through a cheek muscle attached to a sensor.
(b) He was rushed to the hospital for being what the university officials described as being ‘gravely ill’.