I really don’t know _________ I put my wallet after I paid the bill．
| A．where was it | B．it was where that |
| C．where was it that | D．where it was that |
I _____ give you this book today, but I forgot.
| A．intended to | B．tended to | C．extended to | D．pretended to |
His health had_____ while he was in prison.
| A．became better | B．became worse | C．became stronger | D．became weaker |
We should never _____ ourselves with a little book knowledge only.
| A．convince | B．satisfy | C．comfort | D．benefit |
The substance can be added to gasoline to ______ the speed of automobiles.
| A．quicken | B．shorten | C．loosen | D．enlarge |
It’s hard for the young people to imagine what _____ conditions their parents once lived under.
| A．sincere | B．hard | C．strict | D．tight |