—Have you found the problem with the computer ?
—Sorry. It ______ .
| A．is checked | B．is being checked | C．has checked | D．was being checked |
— Remember the first time we met, Jim?
— Of course I do. You _______ in the library.
| A．were reading | B．had read | C．have read | D．read |
_______ has recently been done to provide more buses for the people, a shortage of public vehicles remains a serious problem.
| A．That | B．What | C．Despite what | D．Though what |
There are many other examples _______ the development of Chinese writing.
| A．reflect | B．which reflecting | C．reflecting | D．reflected |
Listen! His family must be quarrelling, _______?
| A．mustn’t it | B．isn’t it | C．aren’t they | D．needn’t they |
More than one _______ the people heart and soul.
| A．official has served | B．officials have served |
| C．official has served for | D．officials have served for |