Do you think yesterday’s math problem was difficult — Yes. I could work it out.

My sister ,_____ my family are proud, was admitted to Tsinghua University last autumn.

The weather in the south is generally warm, but it________ be very cold sometimes.

I really appreciatetodrive me home，but I am afraid that I have to finish mywork first now

as your family’s party— We didn’t plan like that, but it ____ very well．