Present Perfect Continuous

My back hurts. I (lift) heavy furniture all day.

• have been lifting

• have lifted

How much ______ (we/spend) on food this week?

• have we been spending

• have we spent

Natalie's a very good pianist but she ________ (not/perform) in public yet.

• hasn't been performing

• hasn't performed

We're excited about our holiday. We _____(plan) it since last October.

• have been planning

• have planned

For years Simon ______ (believe) that he will be a successful businessman.

• has been believing

• has believed

A: Shall I throw the newspaper away? ______(you/do) the crossword?

B: No, not yet. I'm going to do it this evening.

• Have you been doing

• Have you done

My meals over the past few days _____(consist) of sandwiches and cups of coffee. I need some proper food!

• have consisted

• have been consisting

Martin is feeling stressed. He ___(work) very hard.

• has been working

• has worked

A: How long _____ (you/build) your new house?

B: About thee months.

• have you been building

• have you built

A: Are you enjoying your course?

B: Not really. I _______(not/ understand) very much in the the last few weeks.

• haven't been understanding

• haven't understood