There happened to be nobody under the wall when it fell down, ____ ?
_______ I could express my thanks to the traveler, he had already disappeared in the rain.
Fang Fang is such a kind girl _______ everyone likes very much.
Don’t let any failure discourage you, for you can never tell _______ close you may be to victory.
________ seems to have been great difficulty in turning out excellent graduates.
Barry must have visited the Eiffel Tower before, _______ he?