Another important factor to take into account is the l______ of the book.
They reviewed each ___(方面) of the plan bit by bit.
used to do ______
Once it is seen, it will never be forgotten. ___ ___, it will not be forgotten.
As he is encouraged by the progress he has made, he works harder. ___ ___ ___ ___, he has made, he works harder.
Aunt Wu came in and she was followed by her daughter. Aunt Wu came in, ___ ___ ___ ___.