[ Gerund vs Infinitive ]
We could … sign language to communicate with Betty.
A. to learn
B. learn
C. learning

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Preposition on TimePronunciation and Vocabularyanother/the others/each other/one anotherThird ConditionalsVocabulary and PrepositionsQuantifiers-ed and -ing AdjectivesGRAMMAR - Could / Could notAdverbs or AdjectivesRelative & Interrogative PronounsOther quiz:
Grammar › ViewThey went to ____ school to see their children’s teacher.
A. Ø
B. a
C. the
Grammar and Vocabulary › View
I think there might be life on other planets. Do you believe in __________ ?
a. historians
b. aliens
c. archaeologists
d. ghosts
Grammar › ViewWhat is the past tense form of smile?
A. will smile
B. smiled
C. is smiling
Vocabulary › View
A collection of facts or information that suggests whether something is true or false.
A. evidence
B. data
C. variable
D. observation
