Where’s her second son? I haven’t seen him for a long time. —He _______ Maine looking for a place to work.

Tom helped the teacher to hand out the test papers, didn’t he ?

It doesn’t look like rain, so you bring your umbrella with you.

Beijing, ______ capital of China, has ______ long history.

An e-mail_____ lots of e-mail English starts to look_____ secret code.[ ]