[ Grammar ]
They don’t know where the key is. That’s why they haven’t opened the door.
A. If they had known where the key was, they would open the door.
B. If they knew where the key was, they would have opened the door.
Random Topics:
Adjective ending with ED & INGDirect-Indirect SpeechFinite and Non-Finite VerbMuch, many, a lot of, a few, a littleArticleEd and Ing EndingsModals of PredictionCity PlacesFirst ConditionalThe Future Simple TenseOther quiz:
Preposition › ViewMany people suffer ___________ allergies during pollen season.
A. with
B. for
C. from
D. to
Grammar › View
Someone has been moving around just now. Do you … him?
A. knew
B. has knew
C. know
D. knows
Grammar › ViewThousands of people turned up for the Pop Festival where the main ………….was Bob Dylan. (attract)
A. attracting
B. attractive
C. attraction
D. attractiveness
Grammar › View
We got a company ____our new carpet.
A. installed
B. to install