Mark letter A, B, C or D to indicate the word whose main stress position is placed differently from that of the others in each group

A. burnt

B. erupted

C. been erupted

D. been burnt

B. This flower display is prettier than some we’ve ever seen.

C. This is one of the prettiest flower displays we’ve ever seen.

D. This flower display isn’t as pretty as those we’ve seen.

B. If it rains, the match is canceled.

C. If it had rained, the match would have been canceled.

D. If it rains, the match will be canceled.

B. to

C. up

D. on

B. My boss asked me if can I speak English.

C. My boss asked me if I could speak English.

D. My boss asked me if I can speak English.

B. have been built

C. has been built

D. have built