Althoughthetrfficisnotbusy,helikestodriveata_______speed.
A、spareWe are _______ at the rapid progress Mark has made in this semester.
Sheisalready16yearsold.Butshe_______asifshewerestillalittlegirl.
With the _______of Mary, all the girl students are eager to go to the party.
Bothsugarandsaltcan______inwater.
This river forms a natural _______ between China and Korea.
