Solutions Upper-intermediate Workbook — Key Unit 1

Use phrases to speculate and compare, such as "judging by," "it's hard to say," "as though," and "looks as if".

Focuses on the duration of an activity leading up to a past event (e.g., "They had been waiting for an hour before the bus arrived"). Solutions Upper-Intermediate Workbook Key Unit 1

"A friend in need is a friend indeed" and "Blood is thicker than water". 1B: Grammar – Past and Perfect Tenses Use phrases to speculate and compare, such as