1. He is not ____________ to come to the phone right now.
a. available   b. positive   c. possible   d. necessary

2. I think this phone is broken. I didn't hear a _________________ when I picked it
up.
a. dial tone   b. greeting c.  subscriber   d. touch pad

3. My cellphone battery is low, so I should __________ it.
a. confirm  b. identify  c. recharge  d. reverse

4. The manager requested a _______________ with the branch office in Mexico.
a. battery  b. cold call  c. small talk  d. teleconference

5. Is it possible to make ________ calls from the phones in the office?
a. available   b. busy  c. positive   d. long distance