It's important that. ■■國■■ It is important that we (speak) politely. It is imperative that we(practice) criticism and self-criticism Strange, advisable, anxious, crucial appropriate compulsory, desirable, eager, essential, fitting, imperative(yt 对必要的), impossible, improper; natural2 necessary, obligatory, preferable, proper, urgent, vital, willing 20211/21212021/2/21 It’s important that…... It is important that we ____ (speak) politely. It is imperative that we____ (practice) criticism and self-criticism strange, advisable, anxious, crucial, appropriate compulsory, desirable, eager, essential, fitting, imperative(绝 对必要的), impossible, improper, natural, necessary, obligatory, preferable, proper, urgent, vital, willing