The formula of the Present Perfect Continuous is…
A. have been + Verb-ing
B. have been + Verb-ed
C. has been + Verb-ing
D. have/has been + Verb-ing
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Modal Verbs › View. Which of the following sentences correctly uses a modal verb to express ability?
A. She must finish her homework by tonight.
B. He can swim across the lake.
C. They should arrive by noon.
D. You might want to check the weather.
Grammar › View
choose the grammar structure of present perfect
A. subject , have +simple past verb
B. subject+have-has verb+past participle verb
C. subject+past participle verb +have has
D. subject + has +past participle ver
Grammar › ViewMartha doesn’t mind ___________________ the washing up.
A. to do
B. do
C. doing
D. do to
Grammar › View
I never sleep in class，but my brother ___ ．
A. do sometimes
B. sometimes does
C. never does
D. does never