Question:
I _____ for half an hour now.
Ahas been waiting
Bhave been waiting
Cwas waiting
DNone of the above
Answer:
B. have been waiting
Explanation:
when time word 'for' comes in a sentence present perfect continuous tense is used .
Related Questions:
Spot the error:
When I(A)/ gone out(B)/,the sun was shining(C)/No error.(D)
Use the correct tense form of the verb given in the brackets. At present she (write) this examination.
They ..... newspaper every morning.
I the letter , but I can't find a stamp.