-- Hi, Rob! ____?
---I’m fine. I’ve just been to my first language class.
| A．What’s wrong with you | B．What did you do |
| C．How are you doing | D．How do you do |
The old professor told us every part of the materials should be made use of ______ the power station.
| A．to build | B．building |
| C．build | D．built |
The boss insisted that every minute ______ made full use of ______ the work well.
| A．be, to do | B．was, doing |
| C．be, doing | D．was, to do |
Hearing the news, he rushed out, ______ the book ______ on the table and disappeared into the distance.
| A．left; lain open | B．leaving; lying open |
| C．leaving; lie opened | D．left; lay opened |
I got out of the taxi, _____ the fare and dashed into the station.
| A．paid | B．paying |
| C．to pay | D．having paid |
She took her son, ran out of the house, _____ him in the car and drove quickly to the nearest doctor’s office.
| A．put | B．to put |
| C．putting | D．having put |