Einstein was famous _________ a scientist _______ his Theory of Relativity.
| A．for;for | B．as;for | C．for;as | D．as;as |
He made a mistake，but he corrected the situation it went worse．
| A．until | B．when | C．before | D．as |
matters most in learning English is enough practice．
| A．What | B．Why | C．Where | D．Which |
It long before we the result of the experiment．
| A．will not be；will know | B．is；will know |
| C．will not be；know | D．is; know |
－I wonder do you think of Bob?
－Selfish but honest．
| A．how | B．what | C．if | D．whether |
They couldn’t stand like that．
| A．be treated | B．to treat | C．treating | D．being treated |