When he ______ the door, he found his keys were nowhere．
| A．would open | B．opened | C．had opened | D．was to open |
I told them not everybody could run as fast as you did, _____?
| A. could he |
B. didn’t I |
C. didn’t you |
D. could they |
Some passengers were ______ in the traffic accident and taken to the nearest hospital.
| A．injured | B．damaged | C．destroyed | D．harmed |
Baseball requires teamwork _______ tennis is an individual sport.
| A．while | B．when | C．yet | D．although |
--- I like football.
---______ my sister and me.
| A．So do | B．So are | C．So did | D．So it is with |
If water becomes increasingly scarce in decades ______, water shortage will become a hot issue all over the world.
| A．coming | B．having come | C．to come | D．to be coming |