[ Grammar ]
Phong, Vy and Duy (ride)…. their bicycles to school now
A. aren’t riding
B. don’t riding
C. haven’t riding
D. hasn’t riding

Random Topics:
Comparative and SuperlativesVerb FormsLet & Be allowed toSuffixes and TensesCan vs CouldSpeech TensesPast Tense vs Present Perfect TenseReported Speech and Reported QuestionsModals TensesSubordinating Conjunctions and ClausesOther quiz:
Grammar › ViewI _________ many story books.
A. has
B. had
C. have
Grammar › View
Which sentence uses the “I’m good at…” structure correctly?
A. I’m good at draw but I’m not good at sing.
B. I’m good at drawing but I’m not good at singing.
C. I’m good at drawing but I’m not good at sing.
D. I’m good at draw but I’m not good at singing.
Infinitives › ViewWhat is the infinitive phrase in the following sentence?
In the mall, we want to walk quickly to the food court.
_
A. to walk
B. to the food court
C. In the mall
D. to walk quickly to the food court
Vocabulary and Grammar › View
A great way to improve ______ skills is to keep trying new things.
A. reason
B. reasoning
C. reasons
D. reasoned
