Lian Zhan, the Chairman of the KMT, enjoyed the scenery of the Huangpu River ______ the night of May 1^st.

We should return the books to the library ____time.

Here are some flowers ___________ you __________ our best wishes.

—What happened to him?
—He was          murder last week.

What’s this       English?  It’s a watch．   
A．in    B．to    C．for

We plan to have a special party       the evening of January 28^th, 2011.      

---Will you be back ____ five in the afternoon?
　---I’m not sure, maybe later than that.

It’s necessary ______ us to keep our pets clean everyday.

Tom has much difficulty _____Chinese so he often asks me ______help.

Some of the young men learn English________ to the radio．