Let’s learn to use the problem we are facing ______ a stepping-stone to future success.
An elderly woman ______ the counter and asked to be shown some earrings.
It is requested that each of the teachers invited ______ a performance at the party.
Having lived in China for 8 years, Helen has a good _______ of both English and Chinese.
A lot of people here, _____, Tom, are for the plan that we will go to the beach on foot.
She devoted herself _______ to her research and it earned her a good reputation in her field.