We may find that learning a foreign language does not have to be________learning our mother tongue,but can in fact be twice ________.
Computers and mobile phones, though they are indeed making our life ________ and more ________, have reduced the need for facetoface communications.
—What about the result of your final examination?—Not so bad. Not so good as my parents expected, ________.
However, they can hardly blame me; it is ________ their own fault.
Invention can be ________ as it may suddenly begin just by noticing something usual.
—You don't seem to be quite yourself today. What's wrong?—Oh, I'm suffering from a cold. Nothing serious, ________.