It’s beyond our comprehension that Jim, who tops the class in English, ________ have difficulty translating such a simple sentence.

We              have hurried all the way to the airport - the flight was called off because of the foggy weather．          

 — Mum, would you please buy me an ipad?— If you can help do the dishes the whole vacation, you ______ have one as a reward.

The World Wide Web is sometimes jokingly called the World Wide Wait because it _______ be very slow. 

David, you _____play with the valuable bottle; you_______ break it.