_______ which whis sister from time to time.

time she was in trouble, she went tohim for help, as he said he ___ do anything for her

When I passed the river, I saw some children ______ on the sand.

we finish the project two days ahead—I’m afraid we ,in case the heavy storm comes suddenly.

Look! Somebody _____ the sofa.—Well, it wasn’t meI didn’t do it