You have not yet answered my question _______ I can join in the party tonight.
The more one is ______ the English-speaking environment,the better he or she will learn the language.
—Would you mind answering some questions on shopping habits?—_______.
I hope my teacher will take my recent illness into _______ when judging my examination.
It remains to be seen _______ the newly formed committee’s policy can be put into practice.
Entering the room, I found Mary _______ at the desk and _______ a letter.