It remains ________ whether the students will benefit from the monthly exams.
with so much homework to do,David told his sister_____so much noise.
it was because of his kind nature _______I fell in love with Peter.
Kate is really young for the job, but, on the other _____, she is well trained.
He couldn’t take part in the final exam _______ his serious illness.
Listen to Li Yang, founder of Crazy English. He speaks English _____ he were American.