The old man used _____ in front of his house and he has got used to _______ like that.
| A．to sit; doing | B．to sitting; do |
| C．to sit; do | D．to sitting; doing |
I love animals and that’s the reason ______ I hate the people who kill wild animals for money.
| A．that | B．in which | C．which | D．why |
Professor Li preferred _______ lectures to his students to _______ to meetings on scientific developments.
| A．to give; invite | B．to give; be invited |
C．giving; being invited | D．giving; inviting |
Kathy told me that all the doors and windows _______ when she arrived this morning.
| A．have cleaned | B．have been cleaned |
C．had cleaned | D．had been cleaned |
He devoted himself __________ to his research and got many achievements.
| A．entirely | B．extremely | C．carefully | D．certainly |
A great number of visitors ________ attracted to my hometown, and the number of foreigners there _______ quite large.
| A．are; are | B．are; is | C．is; are | D．is; is |