In some cases，different approaches ________ the same scientific problem lead to conflicting theories.
| A．to | B．in | C．of | D．for |
The growing speed of a plant is influenced by a number of factors，________ are beyond our control.
| A．most of them | B．most of which |
| C．most of what | D．most of that |
—Would you mind my coming over and having a look at your new garden? My little son's curious about those roses you grow.
—________.You're welcome.
| A．Yes，I do | B．Never mind |
| C．Yes，please | D．Not at all |
Mr. Black________ Shanghai in a few days. Do you know when the earliest plane ________on Sunday?
| A．leaves for；takes off |
| B．is leaving for；takes off |
| C．is leaving for；is taking off |
| D．leaves for；is taking off |
Rather than ________ on a crowded bus，he always prefers ________ a bicycle.
| A．ride；ride | B．riding；ride |
| C．ride；to ride | D．to ride；riding |
Like some of my classmates，I cannot live up to my teachers' expectations；________，I let them down.
| A．in other words | B．after all |
| C．what's more | D．more or less |