13.He pretended _______ when his mother stepped into his room.( )
A. | to study | B. | studying | C. | to have studied | D. | to be studying |
12.---Why did the police _____ the crowd?
---Because the president's car ____ in the street.( )
---Because the president's car ____ in the street.( )
A. | break down,broke down | B. | break up,broke up | ||
C. | break down,broke up | D. | break up,broke down |
11.Happily for John's mother,he is working harder to ______ his lost time.( )
0 138275 138283 138289 138293 138299 138301 138305 138311 138313 138319 138325 138329 138331 138335 138341 138343 138349 138353 138355 138359 138361 138365 138367 138369 138370 138371 138373 138374 138375 138377 138379 138383 138385 138389 138391 138395 138401 138403 138409 138413 138415 138419 138425 138431 138433 138439 138443 138445 138451 138455 138461 138469 151629
A. | make up for | B. | keep up with | C. | catch up with | D. | make use of |