Often, in language use, deciding whether to use the present perfect or the past simple depends on your perspective on the event. Two people were killed when the bomb went off but the effect of ...

h. Only in winter. 1. Does it snow in the UK? (h) Only in winter. [Use the present simple for truths and facts.] 2. Is it snowing in the UK? (g) Not right now. [Use the present continuous for ...