Jamal walks as if he ____ lame.

Explanation:

Correct Answer is: were
সঠিক উত্তর হবে – were.
কারণ, কোনো sentence এ as though, as if, wish, fancy ইত্যাদি থাকলে এবং এরপর to be verb আসলে তা সব সময় were হয়।
আবার , Present + as if/ as though +past indefinite হয়।
সুতরাং, Jamal walks as if he were lame হবে।