Mom, I’m leaving. －It’s raining. You’d better ________ an umbrella with you.

The number of students in our school ___ 9,000 and a number of them ___ from the city.

have you been studying in this school?-Since two years ago.[ ]

Do you think ________ necessary to take the second turning?

I’m going to travel abroad (国外) and New York sounds _____ my dream city. [ ]