اريد حل هذه الاسئلة

[yoyo_love228]

Say where these mini – dialogues take place and who the speakers are…
21-A : Have you heard that Dr. Zeweil has been awarded the
Nobel prize in chemistry?
B : Of course , I did .
A : What is the importance of the Femto second as a discovery
In science ?
B : Oh ! It is wonderful to observe atoms during chemical
reactions .
Say where these mini – dialogues take place and who the speakers are…
31-A : Let me take your address and telephone number .
B : Here you are .
A : Now , I 've made the reservations you can come back and
you can pick the tickets within two days .