English A4: Activity based on Contextual Grammar

He didn't look into the problem until 1963. (Rewrite without 'didn't.)

He would trip and fall or slur his speech. (Rewrite using 'not only... but also...'.)

Hawking first began to notice problems with his physical health while he was at Oxford.
(Frame a 'Wh-' question to get the underlined part as answer.)

Underline the determiners:
The Grand Design was Hawking's first major publication in almost a decade.

Add question tags:
(a) The Big Bang was the inevitable consequence of the laws of physics.
(b) There is something rather than nothing.

State the function of the underlined auxiliaries :
(a) Humans may colonize other planets in the future.
(b) The universe can create itself from nothing.
(c) The universe will create itself from nothing.

Hawking spoke against the idea. (Rewrite using 'did not.)

The short informative book became an account of cosmology. (Add a question tag.)

It has sold millions of copies worldwide and been translated into more than 40 languages. (Change into a simple sentence)

He was diagnosed with amyotrophic lateral sclerosis. (Rewrite using the present perfect tense of the underlined part.)