_____your composition carefully, some spelling mistakes can be avoided．
| A．Having checked | B．Check | C．If you check | D．To check |
Evidence came up________special speech sounds can be recognized by babies as young as 6 months old.
| A．what | B．which |
| C．that | D．whose |
At the meeting，all the people were deeply________with her brilliant report.
| A．impressed | B．surprised |
| C．excited | D．comforted |
—Have you finished the report?
—Oh，sorry.It was so noisy in the office that I couldn’t________down to write anything.
| A．settle | B．put |
| C．sit | D．lie |
—Jack hurt his leg yesterday.
—Really？________？
| A．What’s wrong with him | B．How did it happen |
| C．Wasn’t he too careless | D．Who told you that |
Generally speaking，the Internet makes________possible for people to get the information they need quickly.
| A．them | B．themselves |
| C．it | D．that |