Rod loves _____ clocks. However, he never manages to put them together again.
| A．taking apart | B．giving away |
| C．making up | D．turning off |
No sooner ____ to the station ____ the train left.
| A．had I got， when | B．I had got， than |
| C．had I got， than | D．did I get， when |
If you don't go， neither ____.
| A．shall I | B．do I | C．I do | D．I shall |
Only by practising a few hours every day ____ be able to master the language.
| A．you can | B．can you | C．you will | D．will you |
Not until I began to work ____ how much time I had wasted.
| A．didn't I realize | B．did I realize | C．I didn't realize | D．I realized |
I want to be left alone ___ things out.
| A．think | B．thought | C．thinking | D．to think |