We packed all the hooks in wooden boxes so that they damaged.

Why did Tan become interested in the sounds of nature——__________he thinks the best music comes from nature.

Famous physicists from all over the world came to theUS to ______the 100th anniversary of Albert Einstein’s birth

k that something has to be done to stop the airfrom being polluted, ______

Hi, Steve, have you finished your book report—Not yet. I haven’t decided which book _________.