[ Vocabulary ]
The population got out of control because there were no natural ………. to keep it in check.
A. predators
B. transports
C. excavations
D. generations
Random Topics:
ModifiersConditional Sentence Type 2 and Type 3Noun PhrasesPerfect and Past TenseOn, At, ByModal Verbs in ConditionalsCorrelative conjunctionsIntensifiers: Really vs VeryPhrasal Verbs with up and downGerund vs InfinitiveOther quiz:
Vocabulary › ViewWhat is the definition of “certainty”?
A. The state of being very tired
B. Feeling unsure about something
C. The state of being sure or confident
D. Not knowing anything
Grammar › View
My brother usually goes to bed early _________ he’s sleepy.
A. Now that
B. Unless
C. Whether or not
D. In case
Future Tenses › ViewWhat is the rule for forming negative sentences in future simple tense?
A. Use ‘would not’ + base form of the verb
B. Use ‘will not’ or ‘won’t’ + base form of the verb
C. Use ‘will’ + base form of the verb
D. Use ‘shall not’ + base form of the verb
Frequency Adverbs › View
She _____dinner for the family.
A. cooks often
B. often cooks