4
→It is eight months since it last rained.
→The last time it rained was eight months ago.
→It hasn’t rained for eight months. 
5
→It is six weeks since it last snowed.
→The last time it snowed was six weeks ago.
→It hasn’t snowed for six weeks.
6
→It is an hour since Tom last cried.
→Tom last cried an hour ago.
→Tom hasn’t cried for an hour.
7
→It is three years since I last saw you.
→The last time I saw you was three years ago.
→I last saw you three years ago.
8
→It is a month since I last watched TV.
→The last time I watched tv was a month ago.
→I last watched tv a month a go.
9
→I last played soccer a week ago.
→The last time I played soccer was a week ago.
→I haven’t played soccer for a week.
10
→It is a year since he last drank wine.
→The last time he drank wine was a year ago.
→He hasn’t drunk wine for a year. 

4
1. It is eight months since it last rained
2. The last time it rained was eight months ago
3. It hasn’t rained for eight months 
5
1. It is six weeks since it last snowed
2. The last time it snowed was six weeks ago
3. It hasn’t snowed for six weeks
6
1. It is an hour since Tom last cried
2. Tom last cried an hour ago
3. Tom hasn’t cried for an hour
7
1. It is three years since I last saw you
2. The last time I saw you was three years ago
3. I last saw you three years ago
8
1. It is a month since I last watched tv
2. The last time I watched tv was a month ago
3. I last watched tv a month a go
9
1. I last played soccer a week ago
2. The last time I played soccer was a week ago
3. I haven’t played soccer for a week
10
1. It is a year since he last drank wine
2. The last time he drank wine was a year ago
3. He hasn’t drunk wine for a year