When can the volunteers sign up for the teaching program this week？A．On Tuesday and Thursd

We can infer from the news item that______.A．the new deal will be signed up by all EU memb

Where can the man sign up for joining the mentor group？A．In the lecture hall.B．In Professo

What was wrong when the man paid his tuition？A．He signed up for the wrong course.B．One of

The phrase "in borderline cases" in Paragraph Six means thatA．when patients can"t make up

When the Olympics finished, all the volunteers were invited to take part in a parade t

英译汉Visitors can also sign up for bay tours and wh