All through history, big changes have taken place in ________ English language, especially when Henry IV became ________ King of England.
. ________ the absence of any further evidence the police were unable to solve the murder.
. . The chair looks rather hard, but believe it or not, it is very comfortable _____.
. It was _____ his mother came in _____ to prepare his lessons.
. _______ has already been pointed out, grammar is not a set of dead rules.
. You should try to _____ new circumstances as quickly as you can