I know it isn ’t important but I can ’t help ________ about it.

Ihavebeenstudyinghereforfouryears,bynextsummerI________.

The director recommended that she ________ (study) more English before going abroad.

He refused to tell us whether he ________ (undertake) the job.

Thefloordoesnotlooksobadwhen________(sweep)clean.