Present perfect

They have known each other ________ childhood.

• since

• yet

• never

• for

Kim soon Ju has lived in Korea _______ he was born.

• for

• since

• just

• yet

Amy hasn't been here _________ a month.

• since

• for

• just

• already

Willy has _________ to Paris _____ 2 weeks.

• went, for

• gone, since

• gone, for

• go, for

she has ________ a paper on his table _____ yesterday.

• put, since

• puted, since

• put, for

• puted, for

I have sat here for ________.

• last two hour

• yet

• 3 p.m.

• two hour

John has ________ the building _______ 1997.

• build, since

• built, for

• built, since

• build, for

I have ________ a song _________ last hour.

• sung, since

• sang,for

• sing, since

• sung, for

This picture has been drawn ________ __________.

• since 1996

• for 1996

• since 20 years

• for last 20 years

They haven't arrived at the airport ________.

• just

• since

• for

• yet