They ________ each other since they were in primary school.
A.know B.knew C.will know D.have known
If it ________ tomorrow, I'll go hiking with you.
A.doesn't rain B.won't rain C.didn't rain D.hasn't rained
—Do you want to go to the new cinema tomorrow?
—Sorry, I ________ there for four times.
A.will go B.have gone C.was going D.have been
—I ________ exercise at nine last night. How about you?
—I was watching TV.
A.am doing B.will do C.have done D.was doing
In the 1950s, my dad ________in a factory and my mum stayed at home.
A.worked B.works C.will work D.work
He used to play football, ________now he's getting interested in tennis.
A.or B.because C.but D.so