Are you ______ your son has difficulty in studying at school?
For professional athletes, ________ to the Olympics means that they have a chance to enter the history books.
— Is that the country clinic you often refer to? — Right,just the one ______ you know my father used to work for 10 years
China understands the situation and needs of underdeveloped countries on the issue of climate change and urges developed countries to support them______ technology and finance.
She didn’t recognize the man who hit her because she could only ______a dark shape moving towards her.
Mr Smith was a strict headmaster, but ______ all the teachers and students in our school showed respect for.