( ) My mother works _____ a bank . A. in B. on C. at
The elephant_________walking and the monkeys______swimming.A.is are B.is is C .are are
Can ducks______?A.swim, swimming B.swim swim C .swimming swimming
A:Hello,_______Mike.Can I speak to Tom?B:Sure, hold on ,please.A.I am B.this is C .that is
Zhang peng’s sister is writing _______e—mail.A.a B.an C .\
Which month do you like best? ______.A. Summer B. August