Scientists generally agree that Earth’s climate will warm up over the next 50 to 100 years _________ it has warmed in the 20,000 years since the Ice Age.
| A．as long as | B．as much as | C．as soon as | D．as well as |
As we drew closer, I could see a whale ____________ by a pack of about six other killers.
| A．attacking | B．being attacked | C．attack | D．to attack |
So I’ve included some photos, ____ will help you picture the places I talk about.
| A．that | B．which | C．where | D．in which |
We didn’t know you were in trouble at that time, ____ we would have given you a hand.
| A．while | B．when | C．otherwise | D．therefore |
The teacher as well as all the boys ____ to play basketball every Sunday afternoon.
| A．is going | B．go | C．goes | D．are going |
.The chair looks rather hard, but believe it or not; it is very comfortable _____.
| A．sitting | B．to sit | C．sitting on | D．to sit on |