Phrases

1. Keep going: continue
2. drop by: visit for a short time
3. Can I put you on hold?: please wait
4. in charge of: responsible for; supervisor of
5. running short of time: getting close to a deadline
6. Mr.

Example:

1. "This is Stephen Jackson." 
    "Nice to meet you, Mr. Jackson."

2. Your test is tomorrow. You haven't studied yet! You're running short of time!"

3. "Let's stop driving and have dinner."
    "No, let's keep going. We will be there soon."

4.(On the phone)"What time is the meeting?"
   "Can I put you on hold? I'll ask my boss."

5. "I'm a teacher. I'm in charge of 50 students."

6. "If you drop in my house tonight, I'll give you the money."