填空

1. Li Ming is as____    (hardworking) as Chen Liang.

2. We don't speak English as____    (fast)  as the foreigners do.

3. She didn't see me come in, and continued            ___      ( play) her toys.

4. Many smokers have come to stop____(smoke).

5. It is likely             ___     _(spend) several days learning riding the bike.