I’m glad to see that you ________ a lot of progress since I ______ you last.

    A. will make; have met

    B. have been making; met

    C. had made; met

D. have made; meeting

The letter V is a _____(象征) of victory.

We had only ________（有限的）communication with the natives.

―If he _______, he _______ so much money with him.（ ）

―Luckily the robbers were caught on the spot, and the lost money was found.

A. have been reminded; wouldn’t have taken　　 B. have reminded; wouldn’t take

C. had been reminded; wouldn’t have taken　 　D. had reminded; wouldn’t take

The teacher r　　　　　　　　　 the book written by Dickens to his students.

Eat _____ cake you like and leave the other for _____ comes in late.

　 A any, who　　 B. every, whoever　 C. whichever, whoever　 D. either, whoever

The government has done everything it can　 the buried miners.

A. to save　　 B. saving　　 C. save　 D. saved

— Do you smoke?

　 — No, but I ___________.

　 A. was used to B. used to

C. am used to D. don’t

下列情况中不属于染色体变异的是

A．第9号染色体短臂缺失　 　　 B．第17号染色体增多一条

C．同源染色体之间交换了对应部分　 D．用花药培养出的单倍体植株