With the development of science, more new technology__________ to the fields of IT.
| A．has introduced | B．is being introduced |
| C．is introduced | D．was introduced |
The boy ______ in the teacher’s office was found ______ yesterday.
| A．standing, smoke | B．standing, smoking |
| C．stood, smoke | D．stood, smoking |
What is the way George thought of ______ enough money to buy the house?
| A．to get | B．getting |
| C．having got | D．being got |
Only then _________ that I can erase the wrong words I have written, but I can’t erase the things I have done.
| A．did I realize | B．have I realized |
| C．I realized | D．I did realize |
How can she keep smiling after what she’s ____________?
| A．gone around | B．gone down |
| C．gone through | D．gone over |
My grandpa insisted that he ________ injured and _______ to the hospital.
| A．be; be sent | B．was; was sent |
| C．be; was sent | D．was; be sent |