Color TV was first shown in 1929. It took more than two decades, ________,until 1951, for color broadcasts to begin in the USA.A. though B. therefore C. otherwise D. anyway
Influenza HINI is an illness that can result in death unless ______ in time.
MSN, ______ you can chat with your friends, makes communication easy.
Mother's love is true love! She's never stopped loving you ______ you become or you do.
The dance performed by the disabled actors is really a hit, but years ago no one ______ they were to achieve such great success.
______ it is true that a student's most important goal is to do well in his or her studies, it doesn't need to be the only goal.