Mary is always ready to do some __ work at the local geracomium（敬老院）in her spare time.
A. responsible B. exhausting C. voluntary D. professional
Many experts stick to the view _____ teacher development is the key to the education quality.
A. which B. what C. that D. where
When I wanted to express my thanks to him，words ___ me. I just held his hands firmly and choked.
A. left B. fled C. forgot D. failed
Don’t worry. Intelligent students can always _______ good solutions to problems.
A. come up to B. come up with C. stick to D. deal with
Nowadays children have to take arts, music and sports classes in their free time ____ busy schoolwork.
A. rather than B. owing to C. apart from D. expect for
Finally, the two brothers climbed up the last floor, ________.
A. hungrily and tired B. hungrily and tiredly C. hungry and tired D. hungry and tiredly
