Now that there are still some problems remaining ______, we have to work extra hours tonight

A．solved            B．solving            C．to be solved       D．to solve

____people _____were killed or injured reached more than 400,000

A．The number of ,who                     B．A great number of, who

C．The number of, which                    D．A great number of, whom

You can’t catch me!” Janet shouted, _______ away.

A．run              B．running           C．to run            D．ran

We are invited to a party _________in our club next Friday.

A．being held         B．held              C．to be held         D．holding

_____ many times, he finally understood it.

A．Told              B．Telling            C．Having told        D．Having been told

My sister met him at the cinema yesterday afternoon, so he      your lecture.

A．couldn’t have attended                 B．needn’t have attended

C．mustn’t have attended                  D．shouldn’t have attended

This machine is very easy     . Anybody can learn to use it in a few minutes.

A．operating         B．to be operating     C．operated          D．to operate

--- I hope you enjoyed the film last night.

-----How on earth do you know I went to a film? I ________ you.

A．won’t tell        B．didn’t tell        C．haven’t told      D．hadn’t told

Studies show that Americans chat on their phones for more than five hours a month, _____ Europeans.

A．as much as twice                        B．twice as much as

C．as much twice as                        D．as twice much as

A good teacher must be able to hold his students’ attention ____ he reaches the end of the class.

A．when            B．after             C．until             D．unless