With more and more farmers moving to cities, an inadequate labor force is ________ becoming a major factor affecting the country's grain output.
| A．automatically | B．occasionally |
| C．absolutely | D．gradually |
_____ they may get injured, parents won’t let their children ____ in the street.
| A．Thinking; play | B．Thinking; to play | C．Think; playing | D．To think; play |
I was enjoying my dessert and talking to my American friend Janice at the table _____ I noticed people
staring at us.
| A．until | B．as | C．when | D．while |
Liu came _____ first by two seconds, breaking _______ record set by Li last year.
| A．the ; / | B．/; the | C．the; a | D．/; / |
---- Will you join us in the game?
---- Thank you, _________.
| A．but why not? | B．but I’d rather not. |
| C．and I won’t. | D．and I’ll join. |
---- There’s coffee and tea; you can have _____.
---- Thanks.
| A．either | B．each | C．one | D．it |