Which river is nearer to the Yangtze? This sentence is not correct? then why?

Successful people try to remind the goals that are set by themselves. =Successful people try to be reminded of the goals which they set for themselves. Are they interchangeable?

He appears to have been the first inventor to display an interest in creating human-like machines for practical purposes. Q:" to display or displaying" are interchangeable? Q: What's the difference between appears to be and appears to have been?

Consider some of the fascinating ways in which animals are involved in everyday English. =how, that In this sentence, instead of "in which", can i use how or that? otherwise, just Consider some of the fascinating ways animals are involved in everyday English. Give me another examples~~

I'm looking for english native speakers who are willing to learn korean. I'll help your speaking in korean like Topik or social integration program. In return, You can help me english. Every Wednesday , Saturday morning around at11(korea time) would be ok. If you are interested in this, plz let me know.

Plz, explain what does it mean? Psychologists have found that the number of social contacts we have is not the only reason for loneliness. It is more important how many social contracts we think or expect we should have. What does the part of 'we think or expect we should have' mean?

Plz, help me what does it mean.. It is more important how many social contacts we think or expect we should have. =It is more important how many social contacts we should have think or expect. Are they interchangeable? Do these sentences have same meanings?Can you explain the first sentence? What does that mean?

Plz take a look at this.. Benjamin Lincoln, a Revolutionary War general, spoke for most Americans of his day when he observed in 1792, Civilization directs us to remove as fast as possible that natural growth from the lands. Plz, explain the word of his day and observed in this sentence. 'His day' and 'observed' indicate Revolutionary War which he participated in otherwise observed means that just he spoke.

What's the difference between two sentences? They continue studying English. They continue to study English.