They didn’t know what I was talking about because they didn’t listen ___________.
--I don’t know if his uncle ________.--- I think he ________ if it doesn’t rain .
The boy is afraid ________ cross the bridge, because he is afraid ________ falling into the river.
The writer found ________ difficult ________ English.
The English teacher added that having conversations ________ friends was not ________ at all.
--- Have you ever practice ________ to foreigners?--- Oh, yes. It improves my ________ skills.