—Did you have any difficulty catching yesterday’s lecture?—No. The professor spoke very clearly to make his speech easy _____.
--The window is dirty.----I know. It ______ for weeks.
The villagers went out to the mountain __________ the missing child.
There is no doubt _______ he will win.
Having been in hospital for two months, he was going to catch up with his classmates.
No one could their tears while watching the moving performances.