The digital camera in our shop is of high quality. If there_________ be something wrong with it while it is still under guarantee, we would repair it __________ our expense.
| A．would ; on | B．might; from | C．could; with | D．should; at |
The mother didn’t go out to search for her lost son. I wonder ______________________him.
| A．was she concerned about | B．if she was concerned about |
| C．if she does concerned about | D．why she was concerned about |
Look! The dictionary , _____is red , is a birthday gift given by Father.
| A．which cover | B．the cover of which | C．the whose cover | D．that the cover |
_________ we can’t understand is ___________ he didn’t join us in our discussion.
| A．That; why | B．What; why | C．That; that | D．What; whether |
He couldn’t ______ the fact that the money was found in his house.
| A．answer for | B．leave for | C．account for | D．care for |
— You look tired!
— Yeah, I ________ basketball since 4 o’clock.
| A．had played | B．have been playing | C．am playing | D．have been played |