— You may find the key to the maths problem on page 107. — Ah, it’s so simple. I wonder why I ______ of that.
We are going to ________ a dinner party on New Year’s Eve.
In Germany, you shouldn’t arrive late to a dinner party; you should always be ___.
Attention, please. The plane to London _______ off at 9: 00.
The Spring Festival falls ________ the first day of the Chinese Lunar year.
Do you still remember the chicken farm _____ we visited the other day?