When did you get to know the professor over there? —It was at the work shopwe did reserch to gether two years ago.

She has a strong belief that she will _____ her country to take part in the Olympic Games. [ ]

How many are there in the fridge— About twenty.

I hear Tom is good at ______, isn’t he— Are you joking Tom is weak at it. He doesn’t even know where Japan is.

Onseeing ______gift they wanted ，the kids screamed with______delight.