______ acupuncture developed, the simple “bian stones” were replaced first by stone and pottery needles, and ________ by metal needles.
| A．As ,eventually | B．With, eventually |
| C．With, accidentally | D．As,accidentally |
Not only ________snacks and drinks, but they also brought cards for
entertainment when they had a picnic in the forest.
| A．did they bring | B．they brought |
| C．was they bring | D．they bring |
This is the only one of the best films _______ to teach kids the first aid this year．
| A．that have been produced | B．that has produced |
| C．that have produced | D．that has been produced |
Lawrence Craven is the author of several published reports, one of _____ introduced the idea _____ aspirin could reduce the risk of heart attacks.
| A．them; when | B．which; that |
| C．what; that | D．which; when |
Have you got any books on psychology on the shelves of your private library? I’d like to borrow _______.
| A．them | B．it | C．one | D．that |
It is spring now. The flowerssweet in the botanic garden attract the visitors to the beauty of nature.
| A．to smell | B．smelling |
| C．smelt | D．to be smelt |