collect sth. or To collect sth. or collecting sth.
collect sth. or To collect sth. or collecting sth.
collect sth.to sb还是 collect sth.for sb.
agree with sth.or agree to sth.
collect sth后加from还是with
it is my frist time to do sth / or doing sth/or do sth?
give up to do sth or give up doing sth?
let sb.do sth.or let sb.to do sth
to put or keep out of sth
look at sth,or watching
be used to do sth.or be used to doing sth.
有谁知道listen to sb do sth or to do sth?
是learn to sth还是learn sth (learn English or learn to English)