下列各句中，没有语病的一项是

Have you decided ____________ on April 1st—I will put a piece of paper which says “Hi” on my brother’s back.

The big fire lasted as long as 24 hours _______ it was brought under control.[ ]

A growing number of people prefer to shop online because the prices of the goods on the Internet are usually much lower than ______ in the malls.

Would you like me to carry this box foryou —_________.I can manage it myself.