题文
You should keep________math and shouldn’t give up________it．
| A．to study；to study |
| B．study；study |
| C．to studying；to studying |
| D．studying；studying |
You should keep________math and shouldn’t give up________it．
| A．to study；to study |
| B．study；study |
| C．to studying；to studying |
| D．studying；studying |
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