is used to后加什么？
is used to=be used to，后跟名词或动名词，be也可用get等代替。
be used to doing 表示 习惯于；
used to do 表示过去经常发生的事，强调现在已经不存在的习惯。
Yoga can be used to strengthen the immune system.
瑜伽能增强人体免疫系统。
She probably has a good mind, which should be used to the full
她可能很有头脑，应该充分运用。
If necessary X-rays and blood tests will also be used to aid diagnosis
如有必要，还要进行X光检查和验血以帮助诊断。
The money will be used to repair faulty equipment.
这笔钱将用来修理出故障的设备。