_____ impressed me was the boy’s ability to deal with this kind of difficult physics problem

When did he meet his wife for the first time？—It was _________ he came back from Africa that year _________ he met his wife.

The city library ______many people are eager to study in has been open up to all the public.

Do you know __________tomorrow –At 8 o’clock.

t have money or time in hand; _____, I can’taccompany you to the Parkson Mall today.