27 – The verbs in bold are, respectively, in the a) present perfect, simple past, and simple past. b) simple past, simple past, and present perfec...

27 – The verbs in bold are, respectively, in the

a) present perfect, simple past, and simple past.
b) simple past, simple past, and present perfect.
c) present perfect, simple past, and present perfect.
d) simple past, present perfect, and present perfect.