I wonder if he could get it ________ (do) before tomorrow.

He asked me whether my brother ________ (fly) to Beijing.

He refused to tell us whether he ________ (undertake) the job.

The floor does not look so bad when ________ (sweep) clean. 

He ________ me that he decided to leave on Monday.

The more we looked at the picture, ________.

I know it isn ’t important but I can ’t help ________ about it.

I have been studying here for four years, by next summer I ________.

Comrade Li ________ be in Beijing because I saw him in town only a few minutes ago.

he teacher told them since light ________ (travel) faster than sound,lightning ________ (appear) to go before thunder.