Choose the right form of the verb: “I didn’t know who she was. I __________________ her before.”.

№ Choose the right form of the verb: Would it be all right if I __________________ around six? № Choose the right form of the verb: “__________________ this machine remember instructions.”. № Choose the right word: Regular exercises help to __________________ heart attacks. № Choose the right form of the verb: “You will have your taxi __________________ at the door.”. № Choose the right word: Can one send telegrams at __________________ hour of the night? № Choose the right form of the verb: “Last year we went to Denmark. We __________________ there before.”.