[ Present Perfect Tense ]
they ….. the letter for ten minutes.
A. have written
B. have write
C. have wrote
D. have writing

Random Topics:
Pre-intermediateAdjective / Noun + to InfinitiveComparisonGerunds and TensesFuture TensesNeither/Either/All/NoneGerunds as objects of prepositionZero Conditional SentenceConditional SentenceUnreal Uses of Past TensesOther quiz:
Indirect Speech › ViewDewi asked Yogi, “Where are you when I come to your home?’’
A. Dewi wanted to know where you were when I came to your house.
B. Dewi wanted to know where he was when she came to his house.
C. Dewi wanted to know where he is when she comes to his house.
D. Dewi wanted to know where was he when she came to his house.
Grammar › View
Margie just called and said she would be here at 8 o’clock. By the time she gets here, we —- for her for two hours.
A. will be waiting
B. will have been waiting
____ is the Olympic Stadium? It´s in Montreal.
A. When
B. Where
C. Which
D. Who
Grammar › View
It is the first time she….. to Venice
A. traveled
B. has travelled
C. would travel