_____ his knowledge of the mountainous country, John Smith was appointed as our guide.
Mr. Smith has two sons, one of____working as a bus driver.
I admired the painting, and Ted said he would like me to have___as a gift from him.
Miss Li____as a secretary for five years in the company, and now she is general manager of it.
The National Day Parade for the 60th anniversary of the founding of China is so grand that it certainly doesn't _____ the whole nation.
The president was on a tight ______ so he didn’t visit the Forbiddern City entirely.