Bach died in 1750, but it was not until the early 19th century____ his musical gift was fully recognized.
A. while B. though
C. that D. after
Only after talking to two students ________ that having strong motivation is one of the biggest factors in reaching goals.
A. I did discover B. did I discover
C. I discovered D. discovered
Always ________ in mind that your main task is to get this company running smoothly.
A.to keep B.to have kept
C.keep D.have kept
________ makes the book so extraordinary is the creative imagination of the writer.
A. That B. What
C. Who D. Which
From space, the earth looks blue. This is ________ about seventy-one percent of its surface is covered by water.
A.why B.how
C.because D.whether
It's good to know ________ the dogs will be well cared for while we're away.
A. what B. whose
C. which D. that