[ TOEFL ]
Nimbostratus clouds are thick, dark grey clouds __________ forebode rain.
A. what
B. which
C. what they
D. which they
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Modal Verb Gerund or To InfinitiveGrammar (either..or.. and neither..nor..)Object PronounsDirect and Indirect QuestionConstrative ConjunctionAdjectives & Preposition“Put” Phrasal VerbPreference & Future TenseModals of PredictionNounsOther quiz:
The First Conditional › ViewJoe …… happy if she …… .
A. Is, will come
B. Is, come
C. Will be, comes
Conditional Sentences › View
If she ____ harder, she will pass the exam.
A. study
B. studies
C. studied
D. studying
Grammar › ViewA ___________checks out books
A. vet
B. teacher
C. librarian
D. none
Present Perfect › View
Have you ever ____ off your bike?
A. Fallen
B. Fell
C. Fall