I got nervous when the woman _____ opposite kept staring at me.
| A．seat | B．to seat | C．seating | D．seated |
As we all know, it was _____ that resulted in the terrible car accident.
| A．because of her carelessness | B．her being careless |
| C．because she was careless | D．she was so careless |
In order not to be disturbed ,I spent three days ________ in my study.
| A．locking | B．locked | C．to lock | D．lock |
With online course Crazy English has over 20 million students all over China __________ the class through the Internet .
| A．attend | B．attended | C．attending | D．to be attending |
He sat back on the chair, took a book and began to read, ___.
| A．being looked at ease | B．looked rather at ease | C．to look rather at ease | D．looking rather at ease |
At the computer operation test, one is supposed to stay at his own machine, keep his eyes on his screen, ______ to anyone.
| A．and not to speak | B．but could not speak | C．instead of speaking | D．or rather speak |