Put the verbs in brackets in the Present Perfect Simple or Continuous.
5. I ........ (try) to contact Peter but his phone is always engaged.
6 He........... (fly) an aeroplane before but he doesn't think he can do it now.
7 "What's all this mess? What....... (you /do)?
8 "Where ...... (you / be)? I......... (look) for you for two hours.
9 He ...... (work) in this company for 40 years and........... (never cause) any trouble.
10 Since the doctor warned him about his poor health, James........(give up) smoking
11Someone .........(use) my towel. It's wet.
12 I ......... (wait) for you
for half an hour. Why didn't you call to say you would be late?
13 You....... (not pay) your rent yet. You always forget.
14 He ......... (make) up his mind not to accept the post.
