下列各句中，表达得体的一句是

I’ve tried very hard to improve my English. But by no means ____with my progress.

下列各句中，没有错别字且加点字的注音全都正确的一项是

Why didn’t they complete the task intime— Because it was not until late afternoon_____ they began to solve the major problem．

Eric received training in computer for one year, ________ he found a job in a big company.