After the meeting, what did Ja...helping chimpanzees?

– Kommen Sie aus Amerika– ________. A: Ja, zum ersten Mal B: Ja, ich bin Amerikaner C: Ja, Kanada ist sehr schn D: Ja, in Amerika war ich nie

Mary________ Tom with his lessons this time yesterday. A: helped B: was helping C: were helping D: had helping

She _____ always _____ people. A: /, help B: is, helps C: is, helping D: are helping

I promised _____ him with his homework. A: help B: to help C: of helping D: helping

Sind Sie neu hier________ A: Ja, leider nicht. B: Nein, schon ganz alt. C: Ja, ich arbeite erst drei Tage hier! D: Na ja, es geht.

Bill Gate devotes most of his money______ the poor. A: to help B: to helping C: for D: for helping

在分子传质过程中，若漂流因数p总/pBM＞1，则组分A的传质通量NA与组分A的扩散通量JA的关系为（） A: NA=JA B: NA ＜JA C: NA＞JA D: 不好判断

The main job of the broker is ( ). A: Helping investors buy and sell stocks B: Helping issuers issue shares C: Helping securities dealers to trade stocks D: Underwriting the issuer's shares

He has devoted his life ______ disabled people. A: to helping B: to help C: helping D: help