I hear Tom ________ playing games.-________ no wonder he is easy to feel sleepy in class.[ ]

I am waiting for my friend. ______ ， I will go swimming alone.

Success in life doesn’t happen . It’s the result of devoting your time and energy to what you’ve set out to do.

The baby is generally healthy, but every now and then he ______ a cold. [ ]

The soft music sounds ____. We are all listening ____.