—Did Jack come back early last night?
—Yes. It was not yet eight o' clock he arrived home
| A．before | B．that | C．when | D．until |
Sea water ______ many minerals, salt ______.
| A．contains, included | B．contains, including |
| C．includes, contained | D．contains, contained |
----How do you like the book?
----It’s quite different from ______ I read last month.
| A．that | B．that what |
| C．which | D．the one |
I will carry out the plan _____ there is much difficulty ahead.
| A．as if | B．even if |
| C．if | D．unless |
When I was passing the Town Hall, I heard the clock ______ twelve.
| A．hit | B．Shake | C．beat | D．strike |
Your brother ______you is very kind to me.
| A．and | B．or |
| C．as well as | D．as well |