The most … way of learning a language is by living in the country concerned. A. effective B. ineffective C. effect D. effecting

Bob will come soon. When Bob _______, we will see him.

It was not until she had arrived home _____ her appointment with the doctor.

Do you think this hat _____ me? I'm not sure if it is a good color for me.

Sheila will inherit everything ______ her uncle's death.

________ becoming extinct is of great concern to zoologists.

The rapid rise in the global population is not expected to start ______ until past the middle of this century, by which time it will have reached 9 billion.

Identify the one underlined word or phrase that must be changed for the sentence to be correct

In purchasing(A) a winter coat(B), it is very important for trying(C)  it on with heavy(D)  clothing underneath.

They had a boy _______ that yesterday.