I wondered what difficulty he had _________ the plan?
238. --- Ought he to get down to his work at once? --- Yes, he _____. ought B. ought to C. must D. should to
237. Our teacher will _____ our class a picnic at the riverside tomorrow if the weather permits.
236. His order is _____ we ______ complete the task in five days.
235. --- I’d like to _____ you 100 yuan for the bicycle. What do you think of it?. ---OK. That’ that!
234. After the 1911 Revolution, China began to use the Gregorian calendar (solar calendar) and at the same we have also used the lunar calendar(阴历) in which a leap year (闰年)______ every four years.