What should I wear tonight, Mom?–This is a home party, We can dress.

Lian Zhan, the Chairman of the KMT, enjoyed the scenery of the Huangpu River _______ the night of May 1st. [ ]

What’s ______ most useful invention in the 20th century? —______ computer, I think.

It’s the office! So you know eating is not allowed here.— Oh, sorry.

How many ________ can you see in the picture?[ ]