­—Are you going to take part in the speechcontest—_____ It’s too good an opportunity to miss.

When doing my homework,________.

1We are planning______one-day trip to Century Park during the winter holiday ______ trip must be fullof fun, I think.

Tom,be careful not to drive to fast._________ .–Thank you for your advice.

He ____ this bike for 600 yuan. Though it was a bit expensive, I think it was reasonable.