It was in the lab ______ was newly built ______ they carried out the experiment.
| A．that; which | B．that; that | C．where; that | D．which; where |
Soon, his warm, inviting smile put me , and spent the next two hours talking casually.
| A．at attention | B．at ease | C．at best | D．at a loss |
John seems to sit in front of the television all night.
| A．content | B．easy | C．cozy | D．comfortable |
I really worry about her, but I know if I the therapy, she will stop speaking to me.
| A．bring out | B．bring in | C．bring up | D．bring out |
She tried to sleep, but thoughts and images flashed into her mind.
| A．crowded out | B．crowed to | C．crowded of | D．crowded in |
The society was set up to endangered species form extinction.
| A．deserve | B．preserve | C．observe | D．reserve |