1．All the ladies wear beautiful clothes for the celebration. Some are dressed in red, _______ in purple.
A. other B. another C. others D. the other
2．To understand the complex situation completely requires more thought than ________ so far.
A. gave B. has given C. has been given D. is being given
3． To show our respect, we usually take our gloves off _______ we are to shake hands with.
A. whoever B. whenever C. whichever D. wherever
