Present Perfect VS Present Perfect Continuous

Front

I ____ (cycle) and my legs are really tired now.

Back

have been cycling

Front

I'm sorry I'm late, _____ (wait) for a long time?

Back

have you been waiting

Front

How long ___ you (know) Peter?

Back

have you known

Front

Somebody _____ (eat) my cookies. There are none left.

Back

has eaten

Front

Somebody _____ (eat) my cookies. There are very few left.

Back

has been eating

Front

How many books _____ (write)?

Back

has she written

Front

She must be tired. She _____ (write) all afternoon.

Back

has been writing

Front

I _____ (read) all afternoon. I _____ (read) 5 chapters.

Back

have been reading have read

Front

I think _____ (like) chocolate since I was born.

Back

I have liked

Front

They _____ (travel) for months, and they _____ (visit) three countries so far.

Back

have been travelling, have visited