Thank you for giving me a hand. I ______ in the experiment without your valuable help.
| A．have failed | B．will fail | C．would have failed | D．must have failed |
一Isn't it a surprise that I happened to meet Francis Mathews at the Christmas party last week?
一If my memory serves me correctly, you _____ each other for exactly two years.
| A．hadn't seen | B．haven't seen | C．didn't see | D．don’t see |
We’d better set off，or it will be dark we know it.
| A．before | B．after | C．when | D．until |
To _______ good relationships with your teachers and classmates, you should learn to be on good terms with them.
| A．bring up | B．add up | C．keep up | D．take up |
Write down the key words that you ____ your students to find in the passage.
| A．make | B．expect | C．suggest | D．hope |
Do you know that the first textbooks written for teaching English as a foreign language ____ in the 16th century?
| A．came up | B．came along | C．came out | D．came about |