​GABARITO B2 LESSON 4

• They have never traveled to Colombia.
• Have you ever eaten this food?
• He has never studied German.
• Why haven’t you answered the questions?
• Has it worked well?
• It has never been easy.
• The carry on luggage hasn’t been sent yet.
• How have the students come to the park?
• I haven’t done her a favor.
• Have you ever done the laundry in this machine?
• Has it ever snowed in Brazil?
• We have never been worried about him before.
• Has he been working here since last year?
• When has it started?
• Have you ever been sick at work?