In 1778, Bank was elected _________ president of the Royal Society, ________ position he held for 43 years.
To their great relief, the missing child returned home, ______, after an absence of two weeks.
Have your working conditions improved?---No, ______than before, I’m afraid.
The task is too much for me, so I can’t carry on ______any longer. I must get some help.
I haven’t seen______ this since I collected stamps.
—— What do you think of the concert?—— Oh, it was______success.