Theboysliketolistentomusicwhentheydo______(they)homework.
Ihavetwogoodpenfriends.OneisanAmerican,______isinEngland.
CanIhave_____water?
China________(形容词)
()Whoisthe_____?Heismyuncle.
—Howmanycomputers_____inyourclassroom?
—Therearetwo.