--Be careful! You might fall into the water.
--Thank you. I____.I______ so close to the pool.
| A．didn't know; am standing |
| B．don't know; am standing |
| C．didn’t know; was standing |
| D．didn't know;Would stand |
—How many birds can you see in the trees?
—I can see ______ birds.
| A．hundred of | B．hundreds of |
| C．five hundreds | D．five hundreds of |
______ junk food is unhealthy food, ______ lots of kids like eating it.
| A．lthough, but | B．Although, / |
| C．Because, so | D．Because, / |
I study _____ my math test ______Tuesday afternoon.
| A．at; on | B．on; for | C．for; in | D．for; on |
There’s ____ in the book, so no one is interested in it.
| A．special something | B．special nothing |
| C．anything special | D．nothing special |
Tom wants to be ____ engineer when he _____ up.
| A．an, grows | B．an, will grow |
| C．a, is growing | D．the ,grow |