(2013·日照一模)—What has made John look like lacking sleep?—________ he had to prepare for the coming exam and stayed up last night

Market economy is a competitive economy, ______ I think, suppliers, producers and dealers should obey market rules and develop cooperative relation based on mutual benefits.

Walt Disney was famous _______his cartoons.

Bob isn’t feeling very well He hascaught a cold —Everybody seems to have ________ becauseof the sudden change of the weather

Shall we go for a picnic tomorrowafternoon—_____ It’s said that there might be aheavy rain then．