Could / Couldn't
$100: Complete the sentence: "When I was five, I _____ (can) ride a bike."
Answer: could
$100: Which modal verb is used to ask formal permission: May or Might?
Answer: May
$100: Complete the sentence (strong obligation): "Students _____ study hard for exams."
Answer: must
$100: Choose the correct subject form: "She _____ (have to / has to) wear a uniform at work."
Answer: has to
$100: Fill in the blank (affirmative): "I have _____ apples in my bag."
Answer: some
$200: Make this negative: "He could understand the movie."
Answer: He could not (couldn't) understand the movie.
$200: Fill in the blank (possibility): "Take an umbrella, it _____ rain later."
Answer: may / might
$200: Complete the sentence (prohibition): "You _____ smoke inside the hospital."
Answer: must not (mustn't)
$200: Complete the sentence (lack of necessity): "It's Sunday, so I _____ get up early."
Answer: don't have to
$200: Fill in the blank (negative): "We don't have _____ milk left."
Answer: any
$300: Form a polite request question: "(could / you / help / me / ?)"
Answer: Could you help me?
$300: Make this negative: "He might come to the party."
Answer: He might not come to the party.
$300: What does mustn't express in English grammar?
Answer: Strict prohibition / forbidden action (запрещено / набояд)
$300: Form a question: "(does / he / have to / study / tonight / ?)"
Answer: Does he have to study tonight?
$300: Fill in the blank (question): "Do you have _____ questions?"
Answer: any
$400: Complete the sentence: "Yesterday, she _____ (not / run) because her leg hurt."
Answer: could not (couldn't) run
$400: Which modal expresses a lower probability/possibility: May or Might?
Answer: Might
$400: Form a question: "(must / we / submit / the homework / today / ?)"
Answer: Must we submit the homework today?
$400: Choose the correct form: "He _____ (doesn't have to / mustn't) work tomorrow, it's his day off."
Answer: doesn't have to
$400: Complete both blanks: "There are _____ books on the table, but there aren't _____ pens."
Answer: some / any
$500: What grammar function does could express when talking about past abilities?
Answer: Past ability (мог / не мог / метавонист)
$500: Ask polite permission to enter the classroom using May.
Answer: May I enter (the classroom)?
$500: Correct the mistake: "You mustn't to park your car here."
Answer: You mustn't park your car here.
$500: Fix the error: "She don't has to bring her textbook."
Answer: She doesn't have to bring her textbook.
$500: Correct the sentence: "I didn't see some people in the room."
Answer: I didn't see any people in the room.