190. The famous scientist began the research which his new discoveries.
Is he honest? I find ____ hard to believe what he said.
— Have you been here before?— Yes. This is the third time that I ______ to Shanghai.
The number of the teachers who ______ cars in our school ____ increasing very fast.
I hadn't seen her for 10 years, but I ____ her at once.
——What a fine day! Shall we go picnicking?——______. But we need to be home before six o’clock for the football match.