The ground is very wet. It _____ have rained last night.A.mightB.canC.mustD.may

It is very important for the strong man to know that ______ strong he is, he cannot be the

The fuel injection system is very important, so any trouble of it will _____ the operation

It can be inferred from the passage that______.A．the island is very backward and primitive

"Me-Books Publishing Company" is very unusual because______.A．it makes the reader the lead

The lifestyle. is so very different －－－ it takes a while to ________.A. reliveB. adjust

It ______ last night, for the ground is wet.A、must rainB、must be going to rainC、must hav