PASO 1Elige la opción correcta
PASO 2Agrega los ejercicios que te gustan a Favoritas
Place the preposition since before words or phrases denoting a point in time: since Monday, since yesterday, since eight o'clock, since Christmas. When we use since, the verb is usually in the present perfect tense, but it may be in the past perfect: I was glad to see Tom. I hadn't seen him since last Christmas.
From can also denote a point in time, but it must be followed by to or till: He works from eight o'clock till one o'clock without a break.
In denotes position inside something, while into denotes motion or direction towards the inside of something.
Always write the preposition into as one word.
We use in to describe the physical location of something as part of a larger thing or place. We use at when we're talking about an address, a public place or building (a bus stop, the Post Office, the library etc.) and cases in which the location is irrelevant but what we do there is what matters (school, the dentist, dance class etc.)
Use by (not from) after the passive form to show the doer of the action.