It is worth considering what makes “convenience” foods so popular, and ______better ones of your own.
| A．introducing | B．introduces |
| C．to introduce | D．introduced |
Tom _______ the TV set for $500，which was much cheaper than he had expected．
| A．bought | B．paid | C．cost | D．spent |
Henry’s birthday is on _______ Saturday next month，but I don’t remember _______ date.
| A．不填；the | B．a；a | C．a；the | D．the；the |
______around the university, we then were taken to a building, ______ many scientists worked.
| A．Showing; where | B．Having been shown; where |
| C．Having shown; which | D．Being shown; that |
It’s a pity that you ______ leave so soon. Your uncle will be home in 10 minutes and he misses you so much.
| A．should | B．could | C．can | D．might |
Don’t be afraid of difficulties. They can help you______ experience, and experience can, in return, broaden your horizons.
| A．accompany | B．accumulate | C．abandon | D．acknowledge |