1 . I___________ for a lecture this afternoon, so I’m afraid I won’t be able to meet you at the airport.

A．have prepared	B．will have prepared
C．have been preparing	D．will be preparing

2 . I _________ my final exam at 3 o’clock tomorrow afternoon, so I can’t play basketball with you.

A．will take

B．am taking

C．will be taking

D．take

3 . Complete the conversations with the correct expressions in the brackets.
Sam:     1     (Will you be visiting/Have you visited) the science exhibition next month?
Amy: Yes. You know I’m a technology enthusiast and I     2     (am looking forward to/will be looking forward to) it.

4 . Complete the conversations with the correct expressions in the brackets.
Celine: Lisa is a smart engineer. I feel proud to see the contributions she     1     （has made/will be making) to the company.
Jack: So do I. I also believe we     2     (are seeing/will be seeing) more of them in the next few years.

5 . What do you guess our friend Bob ________ when we get his home?

A．are doing

B．will do

C．have been doing

D．will be doing