1. In some languages, 100 words make up half of all words _______ in daily conversations.
A to use B used C having used D using
2. Not until he retired _______having a holiday abroad.
A did he consider B he considered C considered he D he did consider
3. Please remain _______; the winner will be announced soon.
A to seat B seating C seated D to be seated
4. Only when he reached the tea-house _______ it was the same place he’d been in last year.
A he realized B he did realize C realized he D did he realize
5. The old man often takes a walk after supper with his dog ______ him.
A following B to follow C followed D follows
