II. Grammar and Vocabulary (15 points)21. In face of _______ failure, it’s important for us to keep ________ good state of mind.
The experienced teachers try their best _____ the younger ones _____experience.
John is not a man to count on, and it is very likely that the work ____ by the time he arrives here.
Most probably it will be another 7 hours _____ you can have next meal, so each of you must have your stomach full.
Tony is a quiet boy and he is accustomed ______ at meals, which is always appreciated.
I stayed up late doing my homework yesterday, so I had trouble _____ up early this morning.