. The boy was sitting at the desk, ______ hard when his mother got home.
A.to pretend to work | B.to pretend to be working |
C.pretending to work | D.pretending to be working |
We should consider the students’ request the school library provide more books on popular science.
A.that | B.when | C.which | D.where |
—Is there any possibility you could pick me up at the airport ?
—No problem
A.when | B.that | C.whether | D.what |
The how to book can be of help to wants to do the job.
A.who | B.whomever | C.no matter who | D.whoever |
The fact has worried many scientists ______ the earth is becoming warmer and warmer these years.
A.what | B.which | C.that | D.though |
She is very dear to us. We have been prepared to do it takes to save her life.
A.whichever | B.however | C.whatever | D.whoever |