30They can’t afford to buy the latest equipment at present_______，they keep trying new ways to improve efficiency

Didn’t you have a good time at the party?— Of course I did. As a matter of fact, I had such fun that time seemed to________so quickly. [ ]

Scientists say it may be fiveyears ______ it is possible to test this medicine on human patients

_ more attention, the cabbages________ grown better

Great! It’s one I have ever had.