Look out! The train ________.
A．leaves B．is leaving C．has left D．left
Do you think exercise can keep us ________？
A．well B．good C．fit D．fine
The teacher asked us ________ in our reports before class.
A．hand B．to hands C．handed D．to hand
Tom was the first ________ he was wrong.
A．admit B．to admit C．of admitting D．for admitting[
来
—Send me an email when you are free, will you?
—________.
A．I must B．I will C．I can D．I should
Many students are ________ chatting online, which wastes them plenty of time.
A．crazy about B．connected with C．worried about D．anxious about
