Present perfect tense (since, for, already, yet, still)

They've been here_________seven o'clock.

• since

• for

Answer explanation

We use since with a point in time in the past.

You have worked for this company __________more than ten years.

• since

• for

Answer explanation

For refers to periods of time, e.g. 3 years, 4 hours, ages, a long time, months, years.

I've _______had my lunch.

• already

• still

• yet

Answer explanation

Already means that something happened earlier than we expected. With Present Perfect already usually goes after have or has and before the main verb.

She has _____ finished her homework.

• still

• just

Answer explanation

Just: Indica que la acción acaba de realizarse. Se usa con las oraciones afirmativas y se coloca entre have/has y el participio de pasado.

You ______ haven't eaten today!

• already

• still

• just

Answer explanation

Still: Se puede usar delante de las oraciones negativas con el present perfect para dar énfasis a la oración