____________ he exercises every day, _____________ he is very healthy.
A. Because; /
B. Because; so
C. Though; /
Please ___________ the rubbish into different litter bins according to the signs．（ ）
A．putsB．putC．to put
The world is changing with every minute， and China___________ with every minute，too．（ ）
A．is changingB．had changed
C．changed
___________ does your mother go to the supermarket？
Once a week．（ ）
A．How oftenB．How longC．How far
Annie took a lot of___________ with her mobile phone when she visited the Great Wall last summer holiday．（ ）
A．photoB．photoesC．photos
Look! The girl___________ red is helping an old man cross the road．（ ）
A．ofB．onC．in