It was reported that China's first moon car “Yutu" landed on the moon successfully _______December 14, 2013.A.in B.on C.at
—Where’s Jill? —She ________ in the office. I saw her there just now.
There used to be a boarding school there, _______?
Would you please help me _____ the picture on the wall?
Not only I but also Tom and Jack _____ interested in English because it _____ useful.
The room _____ I live _____ is very large.