—How do you feel your travel to Hainan?—________,I enjoyed it very much,although the weather of some days was unpleasant.
The shoes are of high quality and ________ long.
--The research on the new bird flu virus vaccine is challenging and demanding. Who do you think can do the job? --________ my students have a try?
--How much salt did you put in the soup? --I’m sorry to say, ________. I forget.
________ the important documents were needed_______.
We are waiting until the weather ________ a little.