Emergency line operators must always _____ calm and make sure that they get all the information they need to send help.
| A．grow | B．stay | C．appear | D．become |
The weather turned out to be fine yesterday, I _____ the trouble to carry my umbrella with me.
| A．should have taken | B．could have taken |
| C．needn’t have taken | D．mustn’t have taken |
They ______ a tent and got ready for the night when evening came.
| A．put off | B．put up | C．put on | D．put out |
–Did you go to the show last night?
–Yeah. Every boy and girl in the area _______ invited.
| A．were | B．have been | C．has been | D．was |
–There is still a copy of the book in the library. Will you go and borrow ______?
–No, I’d rather buy ______ in the bookstore.
| A．it; one | B．one; one | C．it; it | D．one; it |
John and I ________ friends for eight years. We first got to know each other at a Christmas party. But we _______ each other a couple of times before that.
| A．had been; have seen | B．have been; have seen |
| C．had been; had seen | D．have been; had seen |