Three-fifths of the buildings____in the earthquake .
| A．was destroyed | B．have destroyed |
| C．were destroyed | D．has destroyed |
—How’s your new babysitter?
—We ______ ask for a better one. All of our kids love her so much.
| A．might | B．mustn’t | C．couldn’t | D．should |
The letters for the boss ______ on his desk but he didn’t read them until three days later.
| A．was put | B．put | C．has put | D．were put |
Gou-de-le, which is one of the largest supermarket Meitans, _____ some of its stores open 24 hours on Mondays through Saturdays.
| A．keep | B．have kept | C．had kept | D．keeps |
—Yang yan, are you coming with us?
—I’d love to, but something unexpected ______.
| A．was coming up | B．had come up | C．would come up | D．has come up |
The manager was concerned to hear that two of his trusted workers _____.
| A．are leaving | B．have left | C．were leaving | D．will leave |