—Kevin, you look worried. Anything wrong?—Well, I __________ a test and I'm waiting for the result.
_______ interests me most in the world is the natural beauty of Guilin.
Idon’tthink______possibletomasteraforeignlanguagewithoutmuchmemorywork.
______forsometimeafteratiringdayisveryenjoyableandexcitingformeinsummer. ASwimB.SwimmingC.Goswimming D.Toswim
We believe scientists will ________a way to solve the problem of air pollution.
Hiswife______hischildrenwasinvitedtotheparty.