eight months
for
since
Correct the questions. How long has your brother be a police officer?
How long has your brother been a police officer?
last weekend
for
since
2015
since
for
Correct the questions. How long has you owned this piano?
How long have you owned this piano?
Correct the questions. How long have you speaking Chinese?
How long have you spoken Chinese?
Correct the questions. How long having you had a dog?
How long have you had a dog?
this morning
for
since
Correct the questions. How longs have you lived in your flat?
How long have you lived in your flat?
half an hour
since
for
five minutes
since
for
two days
since
for
six weeks
for
since
December
since
for
last Friday
for
since