单选题 If he () a vocabulary of more than 5,000 English words, he would have been unable to read
The English newspaper.

单选题 lf fish were the best "brain food,"many people() more fish than usual to improve their
Memory.

单选题 The invasive species ()native animals if the government should not take measures in time.

单选题 lf there were any inhabitants on the Moon they()the Earth reflecting the light of the Sun.

单选题 lf we had paid more attention to these factors, we ()the risk of getting this disease greatly.

单选题 lf he should fail, we() him to try again.

单选题 Things might have been much worse if the mother()on her right to keep the baby.

单选题 If he ()in better shape, he would be a great addition to our rugby team.