What happened to the young trees we planted last week? —The trees______well, but I didn’t water them.

Do you think orange car can reach that speed in hour

The research on the new flu virus vaccine is challenging and demanding. Who do you think can do the job?—________ my students have a try?

I bought __________ useful dictionary for Judy, __________ 11-year-old girl.

What a pity. I was late so I missed _____ him.