His parents are convinced ____ the fact the their son always focuses his mind ___ his study.
| A．of; on | B．of; at | C．by; to | D．on; at |
. If the day _______ wet, we may have to change our plans.
| A．comes out | B．sets out | C．brings out | D．turns out |
It is the first time that a developing country _______ the Expo, described as the Olympic Games of economy, science and technology.
| A．is hosting | B．has hosted | C．hosts | D．will host |
The doctor said it would take six weeks to recover and I ________ be fine by then.
| A．may | B．will | C．should | D．can |
. Knowledge is there for _______ will seek it.
| A．who | B．whoever | C．whom | D．whomever |
―Why are we supposed to buy that flat?
―Because it’s clean and well-located, but _______ of all, it’s affordable.
| A．well | B．good | C．best | D．better |