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I think ___ necessary ___ a foreign language.
| A．that; learning | B．it; to learn | C．that’s; to learn | D．it’s; learn |
He, along with his brothers, ______ how serious the situation is.
| A．haven’t realized | B．hasn’t realized |
| C．don’t realize | D．didn’t realize |
This is the factory ________ we visited last Monday.
| A．that | B．where | C．in which | D．the one |
______ you have finished your work, you ought to have a good rest.
| A．For | B．What if | C．Even when | D．Now that |
All of her time was devoted to_______ her homework, so she had no time to have fun.
| A．do | B．doing | C．does | D．done |
When you sleep, your body prepares you for the day _______.
| A．come | B．came | C．to come | D．coming |