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-Don't look at me.
“Where is it?” “Where is _____? I don't know what do you mean?”
| A．what | B． that | C．where | D．so |
Our math teacher, however, _____ speak English well.
| A．doing | B．does | C．is doing | D．was doing |
Your mother, however, ____ say that to us that day.
| A．does | B．did | C．is doing | D．was doing |
An awful accident, however, _____occur the other day.
| A．does | B．did | C．has to | D．had to |
What do you imagine _____ him from going?
| A．to prevent | B．preventing | C．to have prevented | D．prevented |