_____ can we help victims after a natural disaster?

A. Who   B. How   C. Where   D. When

The police required the traveler ____ for his luggage.

A. check   B. to check  C. checking    D. checked

When we ____ home last night, we saw a strange object in the sky.

A. drive   B. drove   C. were driving   D. had driven

We’ll have to cancel the school sports meeting ___ it snows tonight.

A. if   B. although   C. unless   D. since

It was a terrible journey, ____ we got there safely in the end.

A. and   B. or   C. so   D. but

I ____ 30 pages of the book so far, but I hope to finish it by next week.

A. read   B. am reading   C. have read   D. will read

The sign says “Passengers ____ show their tickets and passports.”

A. must   B. may   C. can   D .should

I don’t mind _____back home. I feel like some fresh air.

A. walk   B. walking   C. to walk   D. to walking

I wonder whether buying an electric car ____ a good idea.

A. be    B. am   C. is   D. are

_____ earthquake recorded in the 20th century occurred in Chile in 1960.

A. Large   B. Larger   C. Largest   D. The largest