常温下，下列各组离子一定能在指定溶液中大量共存的是
A．使酚酞变红色的溶液中：Na＋、Al3＋、SO42－、Cl－
B
=1×10－13mol·L－1的溶液中：NH4＋、Ca2＋、Cl－、NO3－
C．与Al反应能放出H2的溶液中：Fe2＋、K＋、NO3－、SO42－
D．水电离的c（H＋）=1×10－13mol·L－1的溶液中：K＋、Na＋、AlO2－、CO32－
It’s high time you had your hair cut ; it’s getting _______ . 
| A．too much long | B．much too long |
C．long too much | D．too long much |
My friend showed me round the town, ______ was very kind of him. 
| A．which | B．that | C．where | D．it |
They use computers to keep the traffic _______ smoothly.
| A．being run | B．run | C．to run | D．running |
If you leave the club, you will not be_____back in .
| A．received | B．admitted | C．turned | D．moved |
What I need is_____ book that contains ______ABC of oil painting.
| A．a; 不填 | B．the; 不填 | C．the; an | D．a ; the |