ask sb about sth / ask sb to do sth / ask for sth

1. ask sb about sth : 问某人关于某事。 They asked me about the new teacher’s name. 他们问我新老师的名字。   2. ask sb to do sth : 叫某人做某事 He asked us to wait for him at the gate. 他叫我们在门口等他   3. as