1. You will want two trees about ten feet apart, from ________to suspend your tent.
A there
B then
C which
D where
2. That was so serious a matter that I had no choice but ______the police.
A called in
B calling in
C call in
D to call in
3. Americans eat ________as they actually need every day.
A twice as much protein
B protein twice as much
C twice protein as much
D protein as twice much
责任编辑:小草