gineer spoke highly of the government’s efforts,____ he owed his safe return from Libya.

One of the most interesting places in Hangzhou________ are often visited by foreigners is the West Lake.

____ pay too much attention to your reading skills, as they are so important.

No wonder you caught a cold. You _______out last night without a coat. —I know how silly I was.

It’s hard to imagine what progressthey _________ in the past few months.