1
singular-vs-plural
× 2 |
0
sentence-construction
× 2 |
0
direct-objects
|
0
adverbs
|
0
grammar
× 61 |
0
inversion
× 2 |
0
transitivity
|
0
present-perfect
|
0
word-usage
× 55 |
0
indefinite-article
× 2 |
0
phrase-choice
|
0
verbs
|
0
meaning
× 15 |
0
articles
|
0
past-tense
|
0
difference
|
0
word-choice
× 8 |
0
definite-article
|
0
interrogatives
|
0
usage
|
0
prepositions
× 5 |
0
subject-verb-agreement
|
0
parallelism
|
0
reflexive-pronouns
|
0
ellipsis
× 3 |
0
meaning-in-context
|
0
present-simple
|
0
sentence-meaning
|
0
word-meaning
× 3 |
0
phrase-meaning
|
0
connected-speech
|
0
word-order
|
0
tense
× 2 |
0
phrases
|
0
participle-clauses
|
0
sentence-structure
|
Y. zeng
