英语学习目标
用英语练习必须、必须、应该 (A2)
A2 英语的“must”、“have to”和“should”的目标，具有上下文使用和可观察的进展。
Use Must, have to, and should accurately to express meaning in a realistic A2 situation.
A2 英语的“must”、“have to”和“should”的目标，具有上下文使用和可观察的进展。
Use Must, have to, and should accurately to express meaning in a realistic A2 situation.