The number of the people invited ____fifty, but a number of them_____ absent for different reasons.
---I can’t work it out in this way. ---Why not ________ it another way?
The _______ performance ________ everyone present.
The course will give a general introduction, _________, it also provides practical experience.
_______ many times, but he still couldn’t understand it.
Please admire the ___decorated rooms where King HenryⅤⅢ met kings from other countries.