-- _________.
--- Thank you. I certainly will.
| A．Happy birthday to you. | B．let me help you with your maths |
| C．Don’t forget to post the letter | D．Please remember me to your family. |
I can never forget the days _____ we worked together and the days ______ we spent happily together.
| A．for which; that | B．which; when | C．when; which | D．on which; when |
Mr. White told us _______ run up and down the hall.
| A．don’t | B．didn’t | C．not to | D．to not |
Only when I left my parents for Italy _____ how much I loved them.
| A．I realized | B．I had realized | C．had I realized | D．did I realize |
He is the man _________ you can turn when you are in trouble.
| A．that | B．which | C．to whom | D．to him |
Look at the timetable (时刻表). Hurry up! Flight 4026 _______ off at 18:20.
| A．takes | B．took | C．will be taken | D．has taken |