The engineers are so busy that they have zero time for outdoor sports activities，__________ they have the interest.
| A．wherever |
| B．whenever |
| C．even if |
| D．as if |
Protecting the earth is not ____ to be left to the government．Everybody should be concerned．
| A．nothing | B．something | C．everything | D．anything |
It' s obviously not urgent, ____ they would have called us straight away．
| A．or rather | B．or else | C．rather than | D．other than |
—May I use your dictionary? I want to consult it．
—It’s over there．____．
| A．Feel free | B．Got it | C．No problem | D．It depends |
Lack of teamwork can result in _____by rivals when we have a basketball game.
| A．defeated | B．being defeated | C．defeating | D．to be defeated |
______ the students found the soldier’s idea interesting, the system was too difficult to be of practical use.
| A．While | B．Unless | C．As soon as | D．Even if |