I _________ great progress in English since I _________ reading novels in English.

David, is this your sister’sbike — No, it’s not ______. It’s my brother’s.

Keep up a good state of mind even if you ______ fail plenty of times.

we have failed to workout this problem What is exactly the right way— Look Only in this way ________ , butyou boys _____ a wrong way

There were two boys in the lab, did the experiment successfully.