My friend went home, ________me to conduct the band.
| A．to leave | B．leaving |
| C．left | D．having left |
So far all cloned animals have suffered from some different serious disorders, ______ dying soon after birth.
| A．many of which | B．many of whom | C．many of them | D．many of that |
The fog was so heavy this morning that drivers could hardly ______ the
things just ten meters away from them.
| A．figure out | B．look out | C．make out | D．rule out |
I ______ a flu when I was on a spring outing with my classmates.
| A．caught up | B．picked up | C．took up | D．brought up |
The weather that day may not be as good as expected, in ________ case we will have to put off the event.
| A．what | B．that | C．this | D．which |
Chemical pollution will bring about a threat to agriculture and food chain, and ________ to human health.
| A．frequently | B．significantly | C．steadily | D．consequently |