Where is Betty? —She is_____ China_____ her parents. [ ]

There are 60 students in my class and 44 of them use weibo veryoften.—44? That means about_______of your classmates are weibo users, right?

Where we will build the dam has not been decided yet, ______?

May I have a look at the I-phone,sir—–Which one?_________black one?

for the bad weather, I would have gone for a spring outing with my classmates yesterday.