This cake is very sweet. You______ a lot of sugar in it. A should put B could have put C might put D must have put
. ______ your timely warning, we would have been unaware of the danger.
. The question then ______ that the supply of drinking water in the mountainous area is serious.
.We could hardly believe what she says because she is ______ changing his mind.
. . —OK, $ 500, but that is my last offer.—_______.
. To deal with the global financial crisis, China ______ the international community to help developing countries.