I have finished a large part of the novel written by Dickens, the rest of which ___ very difficult

What should I do to learn English well asa beginner?— ______, you should memorize some words.

We haven’t settled the problem of_______it is necessary for him to study abroad.

Some parents don’t have the least _____ of what their children are doing; instead, they always force them to do what they don’t want to do.

um, just a few minutes．—Hurry up, Harry, or by the time you pack yourbelongings, the flight ____.