Downward Movement

We have recently witnessed a 2.3 per cent ...... in the prices of medical stuff.
1. fall
2. fell
3. falle
4. fallen
There's been a slight fall ...... the sales of technical equipment in the vast majority of our stores around Slovakia.
1. in
2. of
3. for
4. on
We saw a fall ...... 1.9 per cent in revenues last year.
1. of
2. in
3. to
4. about
Some of our partners have insured their businesses against ...... the dollar by trading in different currencies.
1. a fall of
2. a fall in
3. fall of
4. fall in
A significant ...... orders has recently brought several of our sub-contractors on the verge of bankruptcy.
1. fall in
2. fall of
3. fell at
4. fill in
After a fall ...... house prices, the market started to boom again.
1. in
2. on
3. of
4. at
Following a significant fall ...... support, the presidential candidate started to lose her optimism for the candidacy.
1. in
2. of
3. at
4. on
A substantial ...... exports is responsible for the company's low cash flow.
1. in
2. on
3. of
4. at
We've recently seen a moderate fall ...... 0.7 per cent in the sales of BMWs at our stores.
1. of
2. on
3. at
4. in
A heavy fall ...... petrol prices would undoubtedly decrease the costs of everything we buy at the shops.
1. in
2. of
3. on
4. at