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 |
The young lady from Australia has a gift for creating an atmosphere for her students _________ allows them to communicate freely with each other.
| A．where | B．which | C．what | D．who |
I’m always ________ about what I say because careless remarks are likely to hurt others’ feelings.
| A．enthusiastic | B．curious | C．doubtful | D．cautious |
Evidence has been found through years of study __________ children’s early sleeping problems are likely to continue when they grow up.
| A．why | B．how | C．that | D．whether |
Two lawyers have donated $ 50, 000 to _________ our school’s campaign “Help the Needy”, which was started by our former headmaster 10 years ago.
| A．approve | B．advocate | C．guarantee | D．sponsor |
Don’t touch your eyes, nose and mouth, because they aren’t covered by skin and can ________ the virus easily.
| A．pick up | B．take up | C．make up | D．bring up |