Howlong________they________(dig)theditch?
The more we looked at the picture, ________.
Hardlyhadhefinishedhisspeech________theaudiencestartedcheering.
Herefusedtotelluswhetherhe________(undertake)thejob.
________(fail)severaltimes,theyneedsomeencouragement.
Themorewelookedatthepicture,________.
邮箱：