I would like to ask about two things Can both "while" and "when" be used with a gerund? Which one sounds better: "While ordering" or "when ordering" ? While ordering a taxi, reliability is very ...
My class is working on the past progressive and the simple past, and I was wondering if I can use when instead of while for the following sentence While I was eating, the bell rang. When I was ...
Well, the answer to the question I'm going to ask you might have seemed evident to me before but now after I've been thinking about it for some time I've got stuck. Here below ther're 4 sentences. A ...