13 Use the notes to make sentences in the past simple or present perfect. 1 telephone costs / rise / since January
Telephone costs have risen since January.
2 sales/drop/at the beginning of the year
3 energy consumption/increase/over the past 30 years
4 gas prices/go up/last month
5 number of customers/grow/since 2016
6 surprisingly/interest rates/fall/yesterday
7 TBN's share price/hit a low/after the crash in 2008
8 online bookings/double/since May last year
9 between May and July/order volume/fluctuate