If it ________ for the heavy rain then, we would have arrived here ahead of time.
In my opinion, it's the flying birds rather than the pilot that________for the air crash.
The teacher didn't like ______composition written by the new student because it didn't make _______ sense.
_______ I see the photo,1 will always think of Mr Li, who once was very strict with us.
The lemon looks dry, but you may be able to _______a few drops.
They landed safely on the island in the Pacific. Everything went on better than______.