The invention of airplanes makes traveling much___________than before.
A.easy B.easier C.easiest D.the easiest
If it___________tomorrow, we'll have a football match on the playground.
A.won’t rain B.isn’t raining C.doesn’t rain D.hasn’t rained
Collecting stamps takes___________the least space. I like it.
A.up B.away C.out D.off
All passengers ______ go through safety check before they take the underground．
A.can B.may C.must D.shall
___________the old watch doesn't work well, my grandpa still keeps it as a treasure.
A.If B.When C.Because D.Although
Lucy___________the piano since she was six years old.
A.played B.plays C.has played D.is playing
