Mr wu is _______excellent teacher, he is always patient to help us.

They did not find _____ to prepare for the worst conditions they might meet

. Will you see to _______ that the luggageis brought back as soon as possible

32Staying in a different country, just watch others to see _____ they act to decide what the best to say is

you explain ____ you have been late for schoolseveral times this term— Sorry, but it is the first time that I have beenlate this week